Electromagnetic Induction Question & AnswersSeptember 20, 2021 By Wat Electrical Leave a Comment This article lists 100 Electromagnetic Induction MCQs for Engineering Students. All the Electromagnetic Induction Questions & Answers given below includes solution and link wherever possible to the relevant topic.Electromagnetic induction is the ability of a magnetic field to create current inside a conductor. Hans Christian Orsted has shown that if you have current in a wire creates a magnetic field and that magnetic field could affect the compass needle which is a small little magnet, so current can produce magnetic fields. 1). Which one of the following is represented by a symbol ф? Magnetic flux Magnetic resistivity Electric resistivity None of the above HintThe magnetic flux is represented by a symbol ф2). The existing force in magnetic circuit is _____________ EMF MMF Both a and b None of the above HintThe existing force in the magnetic circuit is the magnetomotive force3). The response in electric circuits is ___________________ Current Flux Voltage None of the above HintThe response in electric circuits is current4). The ratio of magnetomotive force divided by reluctance is known as ____________ Current Flux Voltage None of the above HintThe ratio of magnetomotive force divided by reluctance is known as flux5). The induced electromotive force polarity is given by ______________ law Biot Savart Lenz’s Ampere’s circuital None of the above HintThe induced electromotive force polarity is given by Lenz’s law6). The coil self-inductance is a measure of ___________________ Electromotive force Voltage Electrical-inertia None of the above HintThe coil self-inductance is a measure of electrical inertia7). The path of electrons are unpredictable in _____________ electricity Static Current Both a and b None of the above HintThe path of electrons are unpredictable in static electricity8). In which one of the following electricity the duration of flow is short? Static electricity Current electricity Both a and b None of the above HintIn static electricity the duration of flow is short9). ______________ are the basic components of an electric circuit Control device Electric load Connecting wires All of the above HintThe control device, electrical load, and connecting wires are the basic components of an electric circuit10). ______________ are the sources of electric energy Generators Cells and batteries Photoelectric cells All of the above HintThe generators, cells, and batteries, photoelectric cells are the sources of electric energy11). The electric current produce ____________ effect in the conductors Heating Magnetic Chemical All of the above HintThe electric current produce heating, magnetic, chemical effects in the conductors12). Which one of the following is not an example for a conductor? Metal Glass Ebonite Both b and c HintThe glass and ebonite are not an example for a conductors13). ______________ are the parts of the electroscope Glass jar, brass rod, gold leaves Wooden base, insulators plug Brass disc, seal All of the above HintThe glass jar, brass rod, gold leaves, wooden base, insulators plug, brass disc, seal are the parts of the electroscope14). Which one of the following is not a magnetic material? Iron Cobalt Paper All of the above HintThe paper is not a magnetic material15). The electromagnets are categorized into ____________ types One Two Three Four HintThe electromagnets are categorized into two types they are bar type and horseshoe type16). The Kirchoff voltage law is applicable to ________________ circuit Electric Magnetic Both a and b None of the above HintThe Kirchoff voltage law applies to electric circuitRead more about Voltage17). The Kirchoffs magnetomotive force law is applicable to ________________ circuit Electric Magnetic Both a and b None of the above HintKirchoff's magnetomotive force law is applied to the magnetic circuit18). The existing force in electric circuit is _____________ EMF MMF Both a and b None of the above HintThe existing force in electric circuit is electro motive force19). The response in magnetic circuits is ___________________ Current Flux Voltage None of the above HintThe response in magnetic circuits is flux Read more about Flux 20). The ratio of electromotive force divided by resistance is known as ____________ Current Flux Voltage None of the above HintThe ratio of electromotive force divided by resistance is known as current21). Which one of the following is a conductor? Metals Glass Ebonite Both b and c HintThe metal is an example of a conductor22). Which one of the following is a magnetic material? Wood Stainless steel Nickel All of the above HintThe nickel is a magnetic material23). The force due to the magnetic field is _________________ to the field Perpendicular Parallel Collinear None of the above HintThe force due to the magnetic field is always perpendicular to the field24). The force due to electric field is __________________ Perpendicular Parallel Collinear None of the above HintThe force due to the electric field is collinear25). Which one of the following is velocity independent? Electric force Magnetic force Both a and b None of the above HintThe magnetic force is velocity independentElectromagnetic Induction Important MCQs26). Which one of the following forces is always non-central? Electric force Magnetic force Both a and b None of the above HintThe magnetic force is always non-central 27). Which one of the following is much stronger? Electrostatic force Gravitational force Both a and b None of the above HintThe electrostatic force is much stronger than the gravitational force28). Which one of the following can be attractive or repulsive? Electrostatic force Gravitational force Both a and b None of the above HintThe electrostatic force can be attractive or repulsive29). The relative strength of the strong nuclear force is ___________ One Zero Infinite Finite HintThe relative strength of the strong nuclear force is one30). The range of an electromagnetic force is _____________ One Zero Infinite Finite HintThe range of an electromagnetic force is infinite31). ______________ are the fundamental forces in nature Weak and strong interaction Gravity Electromagnetic force All of the above HintThe weak and strong interaction, gravity, and electromagnetic force are the fundamental forces in nature32). In _____________ reactance, the reactance increases the increasing frequency Inductive Capacitive Both a and b None of the above HintIn inductive reactance, the reactance increases the increasing frequency33). Which one of the following is represented by symbol B? Magnetic flux Magnetic field strength Magnetic field None of the above HintThe magnetic field is represented by symbol B34). The S-I unit of the magnetic field is _______________ Tesla Ampere/meter Weber Newton/meter HintThe S-I unit of the magnetic field is tesla35). The S-I equation of magnetic field strength is _______________ H=NI/1C ф=BAc W=m/v None of the above HintThe S-I equation of magnetic field strength is H=NI/1C36). The CGS unit of magnetic field is ___________ Gauss Oersted Maxwell Henry HintThe CGS unit of magnetic field is gauss37). The CGS equation of magnetic field is ___________ H=NI/1C ф=BAc W=m/v B=H+4πM HintThe CGS equation of magnetic field is B=H+4πM38). What is the unit of electromotive force? Volt Henry Weber None of the above HintThe unit of electromotive force is volts39). The induction motors are categorized into ______________ One Two Three Four HintThe induction motors are categorized into two types they are single-phase, and three-phase40). Which one of the following is a single-phase induction motor? Slip ring Squired cage Split phase None of the above HintThe split phase is a single-phase induction motor41). The CGS unit of permeability is ______________ Gilberts per maxwell Gauss per oersted Weber None of the above HintThe CGS unit of permeability is gauss per oersted42). Which one of the following is represented by a symbol σ? Magnetic flux Magnetic field strength Mass magnetization None of the above HintThe mass magnetization is represented by a symbol σ43). What is the SI unit of volume susceptibility? Tesla Ampere per meter Newton per meter Dimensionless HintThe SI unit of volume susceptibility is dimensionless44). Which one of the following is a three-phase induction motor? Slip ring Shaded pole Capacitor start None of the above HintThe slip ring is a three-phase induction motor45). The single-phase induction motors are categorized into ______________ One Two Three Four HintThe single-phase induction motors are categorized into four types they are split-phase, capacitor start, capacitor start capacitor run motor, and shaded pole46). What are the advantages of induction motors? Low-cost Ease of operation Durability All of the above HintThe advantages of induction motor are low cost, ease of operation, and durability47). What are the starting methods of induction motor? Direct on-line starter Star delta starter Auto transformer starter All of the above HintThe DOL starter, star delta starter, and autotransformer starter are the starting methods of induction motor48). The CGS unit of reluctance is ______________ Gilberts per maxwell Gauss per oersted Weber None of the above HintThe CGS unit of reluctance is gilberts per maxwell49). The range of a gravitational force is _____________ One Zero Infinite Finite HintThe range of a gravitational force is infinite50). Which one of the following is represented by symbol H? Magnetic flux Magnetic field strength Magnetic field None of the above HintThe magnetic field strength is represented by symbol HElectromagnetic Induction MCQs for Quiz51). The S-I unit of magnetic field strength is _______________ Tesla Ampere/meter Weber Newton/meter HintThe S-I unit of magnetic field strength is ampere/meter52). The S-I equation of magnetic flux is _______________ H=NI/1C ф=BAc W=m/v None of the above HintThe S-I equation of magnetic flux is ф=BAc53). The CGS unit of magnetic field strength is ___________ Gauss Oersted Maxwell Henry HintThe CGS unit of magnetic field strength is the oersted54). The motor faults are of ____________ types One Two Three Four HintThe motor faults are of two types they are electrical and mechanical55). The three-phase induction motors are categorized into ______________ One Two Three Four HintThe three-phase induction motors are categorized into two types they are squirrel cage and slip ring56). What is the CGS unit of permeability of free space? Tesla Ampere per meter Newton per meter Dimensionless HintThe CGS unit of permeability of free space is dimensionless57). What is the unit of potential difference? Volt Henry Weber None of the above HintThe unit of potential difference is volts58). Which one of the following is responsible for a steady current? MMF EMF Potential difference None of the above HintThe electromotive force is responsible for a steady current59). The CGS unit of magnetic flux is ___________ Gauss Oersted Maxwell Henry HintThe CGS unit of magnetic flux is maxwell60). Which one of the following is represented by symbol M? Magnetic flux Magnetic field strength Magnetic field Magnetization HintThe magnetization is represented by symbol M61). The S-I unit of magnetic flux is _______________ Tesla Ampere/meter Weber Newton/meter HintThe S-I unit of magnetic flux is weber62). The S-I equation of magnetization is _______________ H=NI/1C ф=BAc W=m/v None of the above HintThe S-I equation of magnetization is W=m/v63). Which one of the following is measured by the potential method? MMF EMF Potential difference None of the above HintThe electromotive force is measured by the potential method64). ______________ are the electrical motor faults Stator faults Rotor faults Both a and b None of the above HintThe stator faults and rotor faults are the electrical motor faults Read more about Stator65). The CGS unit of magnetic permeability of vacuum is ___________ One Zero Infinite Finite HintThe CGS unit of magnetic permeability of vacuum is one66). ______________ are the mechanical motor faults Bearing faults Eccentricity faults Both a and b None of the above HintThe bearing faults and eccentricity faults are the mechanical motor faults67). What is the SI unit of permeability of free space? Henry per meter emu/g emu None of the above HintThe SI unit of permeability of free space is henry per meter68). Which one of the following has low starting torque? Single cage IM Double cage IM Both a and b None of the above HintThe single cage IM has a low starting torque69). Which one of the following has a high operating slip? Single cage IM Double cage IM Both a and b None of the above HintThe single cage IM has a high operating slip70). The poles repel in ____________field Electric Magnetic Both a and b None of the above HintThe poles repel in the magnetic field71). How many parts do atoms consist of? One Two Three Four HintThe atom consists of three parts they are electron, neutron, and proton72). Which one of the following is measured by the voltmeter? MMF EMF Potential difference None of the above HintThe potential difference is measured by the voltmeter73). What is the CGS unit of mass magnetization? Henry per meter emu/g emu None of the above HintThe CGS unit of mass magnetization is emu/g74). The ratio of energy divided by charge is known as ______________ Potential difference Resistivity Reluctance None of the above HintThe ratio of energy divided by charge is known as the potential difference75). Which one of the following is an electromotive force equation? E=V+Ir V=-E/Q V=-IR None of the above HintThe formula of electromotive force is E=V+IrElectromagnetic Induction MCQs for Exams76). The S-I unit of magnetization is _______________ Tesla Ampere/meter Weber Newton/meter HintThe S-I unit of magnetization is ampere/meter77). Which one of the following has high operating efficiency? Single cage IM Double cage IM Both a and b None of the above HintThe double cage IM has a high operating efficiency78). The induction motors are used in _________________ applications Commercial Residential Industrial All of the above HintThe induction motors are used in commercial, residential, and industrial applications79). _____________ are the basic parts f AC motor Enclosure Rotor Stator All of the above HintThe stator, rotor, enclosure are the basic parts of the AC motor80). The squirrel cage type induction motors are ________________ Simple Robust Low cost All of the above HintThe squirrel cage type induction motors are simple, robust, and low cost81). The wound rotor type induction motors are _____________ More expensive Easy to control the speed Both a and b None of the above HintThe wound rotor type induction motors are more expensive and easy to control the speed82). The stator consists of _______________ components Frame Winding Both a and b None of the above HintThe stator consists of frame and winding components83). The squirrel cage IM are ___________ Simple in construction Cheap and reliable Both a and b None of the above HintThe squirrel cage IM is simple in construction, cheap, and reliable84). ____________ are the type of stators used in IM D.O.L Star delta Autotransformer starter All of the above HintThe D.O.L, star-delta, and autotransformer starter is the type of stators used in IM85). What one of the following is represented by a symbol Ɛ? Magnetic flux Magnetic moment Electromotive force None of the above HintThe electromotive force is represented by a symbol Ɛ86). _________ are the speed control methods Pole changing, rotor resistance control Stator voltage control, supply frequency control Slip energy recovery All of the above HintThe pole changing, rotor resistance control, stator voltage control, supply frequency control, slip energy recovery is the speed control methods87). _____________ are the type of losses in an IM Fixed losses Variable losses Both a and b None of the above HintThe fixed losses and variable losses are the types of losses in an IM88). The fixed losses are composed of ______________ loss Windage loss Core loss Bearing friction loss All of the above HintThe fixed losses are composed of windage loss, core loss, and bearing friction loss89). What is the CGS unit of the magnetic moment? Henry per meter emu/g emu None of the above HintThe CGS unit of the magnetic moment is emu90). What one of the following is represented by a symbol V? Magnetic flux Magnetic moment Potential difference None of the above HintThe potential difference is represented by a symbol V91). The variable losses are composed of ______________ Rotor ohmic loss Stator ohmic loss Stray load loss All of the above HintThe variable losses are composed of rotor ohmic loss, stator ohmic loss, and stray load loss92). The S-I equation of voltage or EMF is _______________ H=NI/1C ф=BAc W=m/v V=-Ndф/dt HintThe S-I equation of voltage or EMF is V=-Ndф/dt93). The field strength is ____________ in electrostatic Volts per meter Amperes per meter Meter per second None of the above HintThe field strength in electrostatic is volts per meter94). The field strength is ____________ in magnetostatic Volts per meter Amperes per meter Meter per second None of the above HintThe field strength in magnetostatic is amperes per meter95). The opposite charges attracts in ___________ field Electric Magnetic Both a and b None of the above HintThe opposite charges attracts in an electric field96). The charges repel in _____________ field Electric Magnetic Both a and b None of the above HintThe charges repel in an electric field97). The S-I unit of magnetic permeability of vacuum is _______________ Tesla Ampere/meter Weber Newton/meter^2 HintThe S-I unit of magnetic permeability of vacuum is newton/meter^298). In the newton law of gravitation the force is _____________ Attractive Repulsive Both a and b None of the above HintIn the newton law of gravitation the force is always attractive99). The opposite poles attracts in ___________ field Electric Magnetic Both a and b None of the above HintThe opposite poles attract a magnetic field100). In coulombs law of charge, the force is _____________ Attractive Repulsive Can be attractive or repulsive None of the above HintIn coulombs law of charge, the force is can be attractive or repulsive Time is Up! Time's up
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