Electromagnetic Induction Question & Answers September 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 Hint 2). The existing force in magnetic circuit is _____________ EMF MMF Both a and b None of the above Hint 3). The response in electric circuits is ___________________ Current Flux Voltage None of the above Hint 4). The ratio of magnetomotive force divided by reluctance is known as ____________ Current Flux Voltage None of the above Hint 5). The induced electromotive force polarity is given by ______________ law Biot Savart Lenz’s Ampere’s circuital None of the above Hint 6). The coil self-inductance is a measure of ___________________ Electromotive force Voltage Electrical-inertia None of the above Hint 7). The path of electrons are unpredictable in _____________ electricity Static Current Both a and b None of the above Hint 8). 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 Hint 9). ______________ are the basic components of an electric circuit Control device Electric load Connecting wires All of the above Hint 10). ______________ are the sources of electric energy Generators Cells and batteries Photoelectric cells All of the above Hint 11). The electric current produce ____________ effect in the conductors Heating Magnetic Chemical All of the above Hint 12). Which one of the following is not an example for a conductor? Metal Glass Ebonite Both b and c Hint 13). ______________ are the parts of the electroscope Glass jar, brass rod, gold leaves Wooden base, insulators plug Brass disc, seal All of the above Hint 14). Which one of the following is not a magnetic material? Iron Cobalt Paper All of the above Hint 15). The electromagnets are categorized into ____________ types One Two Three Four Hint 16). The Kirchoff voltage law is applicable to ________________ circuit Electric Magnetic Both a and b None of the above Hint Read more about Voltage 17). The Kirchoffs magnetomotive force law is applicable to ________________ circuit Electric Magnetic Both a and b None of the above Hint 18). The existing force in electric circuit is _____________ EMF MMF Both a and b None of the above Hint 19). The response in magnetic circuits is ___________________ Current Flux Voltage None of the above Hint Read more about Flux 20). The ratio of electromotive force divided by resistance is known as ____________ Current Flux Voltage None of the above Hint 21). Which one of the following is a conductor? Metals Glass Ebonite Both b and c Hint 22). Which one of the following is a magnetic material? Wood Stainless steel Nickel All of the above Hint 23). The force due to the magnetic field is _________________ to the field Perpendicular Parallel Collinear None of the above Hint 24). The force due to electric field is __________________ Perpendicular Parallel Collinear None of the above Hint 25). Which one of the following is velocity independent? Electric force Magnetic force Both a and b None of the above Hint Electromagnetic Induction Important MCQs 26). Which one of the following forces is always non-central? Electric force Magnetic force Both a and b None of the above Hint 27). Which one of the following is much stronger? Electrostatic force Gravitational force Both a and b None of the above Hint 28). Which one of the following can be attractive or repulsive? Electrostatic force Gravitational force Both a and b None of the above Hint 29). The relative strength of the strong nuclear force is ___________ One Zero Infinite Finite Hint 30). The range of an electromagnetic force is _____________ One Zero Infinite Finite Hint 31). ______________ are the fundamental forces in nature Weak and strong interaction Gravity Electromagnetic force All of the above Hint 32). In _____________ reactance, the reactance increases the increasing frequency Inductive Capacitive Both a and b None of the above Hint 33). Which one of the following is represented by symbol B? Magnetic flux Magnetic field strength Magnetic field None of the above Hint 34). The S-I unit of the magnetic field is _______________ Tesla Ampere/meter Weber Newton/meter Hint 35). The S-I equation of magnetic field strength is _______________ H=NI/1C ф=BAc W=m/v None of the above Hint 36). The CGS unit of magnetic field is ___________ Gauss Oersted Maxwell Henry Hint 37). The CGS equation of magnetic field is ___________ H=NI/1C ф=BAc W=m/v B=H+4πM Hint 38). What is the unit of electromotive force? Volt Henry Weber None of the above Hint 39). The induction motors are categorized into ______________ One Two Three Four Hint 40). Which one of the following is a single-phase induction motor? Slip ring Squired cage Split phase None of the above Hint 41). The CGS unit of permeability is ______________ Gilberts per maxwell Gauss per oersted Weber None of the above Hint 42). Which one of the following is represented by a symbol σ? Magnetic flux Magnetic field strength Mass magnetization None of the above Hint 43). What is the SI unit of volume susceptibility? Tesla Ampere per meter Newton per meter Dimensionless Hint 44). Which one of the following is a three-phase induction motor? Slip ring Shaded pole Capacitor start None of the above Hint 45). The single-phase induction motors are categorized into ______________ One Two Three Four Hint 46). What are the advantages of induction motors? Low-cost Ease of operation Durability All of the above Hint 47). What are the starting methods of induction motor? Direct on-line starter Star delta starter Auto transformer starter All of the above Hint 48). The CGS unit of reluctance is ______________ Gilberts per maxwell Gauss per oersted Weber None of the above Hint 49). The range of a gravitational force is _____________ One Zero Infinite Finite Hint 50). Which one of the following is represented by symbol H? Magnetic flux Magnetic field strength Magnetic field None of the above Hint Electromagnetic Induction MCQs for Quiz 51). The S-I unit of magnetic field strength is _______________ Tesla Ampere/meter Weber Newton/meter Hint 52). The S-I equation of magnetic flux is _______________ H=NI/1C ф=BAc W=m/v None of the above Hint 53). The CGS unit of magnetic field strength is ___________ Gauss Oersted Maxwell Henry Hint 54). The motor faults are of ____________ types One Two Three Four Hint 55). The three-phase induction motors are categorized into ______________ One Two Three Four Hint 56). What is the CGS unit of permeability of free space? Tesla Ampere per meter Newton per meter Dimensionless Hint 57). What is the unit of potential difference? Volt Henry Weber None of the above Hint 58). Which one of the following is responsible for a steady current? MMF EMF Potential difference None of the above Hint 59). The CGS unit of magnetic flux is ___________ Gauss Oersted Maxwell Henry Hint 60). Which one of the following is represented by symbol M? Magnetic flux Magnetic field strength Magnetic field Magnetization Hint 61). The S-I unit of magnetic flux is _______________ Tesla Ampere/meter Weber Newton/meter Hint 62). The S-I equation of magnetization is _______________ H=NI/1C ф=BAc W=m/v None of the above Hint 63). Which one of the following is measured by the potential method? MMF EMF Potential difference None of the above Hint 64). ______________ are the electrical motor faults Stator faults Rotor faults Both a and b None of the above Hint Read more about Stator 65). The CGS unit of magnetic permeability of vacuum is ___________ One Zero Infinite Finite Hint 66). ______________ are the mechanical motor faults Bearing faults Eccentricity faults Both a and b None of the above Hint 67). What is the SI unit of permeability of free space? Henry per meter emu/g emu None of the above Hint 68). Which one of the following has low starting torque? Single cage IM Double cage IM Both a and b None of the above Hint 69). Which one of the following has a high operating slip? Single cage IM Double cage IM Both a and b None of the above Hint 70). The poles repel in ____________field Electric Magnetic Both a and b None of the above Hint 71). How many parts do atoms consist of? One Two Three Four Hint 72). Which one of the following is measured by the voltmeter? MMF EMF Potential difference None of the above Hint 73). What is the CGS unit of mass magnetization? Henry per meter emu/g emu None of the above Hint 74). The ratio of energy divided by charge is known as ______________ Potential difference Resistivity Reluctance None of the above Hint 75). Which one of the following is an electromotive force equation? E=V+Ir V=-E/Q V=-IR None of the above Hint Electromagnetic Induction MCQs for Exams 76). The S-I unit of magnetization is _______________ Tesla Ampere/meter Weber Newton/meter Hint 77). Which one of the following has high operating efficiency? Single cage IM Double cage IM Both a and b None of the above Hint 78). The induction motors are used in _________________ applications Commercial Residential Industrial All of the above Hint 79). _____________ are the basic parts f AC motor Enclosure Rotor Stator All of the above Hint 80). The squirrel cage type induction motors are ________________ Simple Robust Low cost All of the above Hint 81). The wound rotor type induction motors are _____________ More expensive Easy to control the speed Both a and b None of the above Hint 82). The stator consists of _______________ components Frame Winding Both a and b None of the above Hint 83). The squirrel cage IM are ___________ Simple in construction Cheap and reliable Both a and b None of the above Hint 84). ____________ are the type of stators used in IM D.O.L Star delta Autotransformer starter All of the above Hint 85). What one of the following is represented by a symbol Ɛ? Magnetic flux Magnetic moment Electromotive force None of the above Hint 86). _________ are the speed control methods Pole changing, rotor resistance control Stator voltage control, supply frequency control Slip energy recovery All of the above Hint 87). _____________ are the type of losses in an IM Fixed losses Variable losses Both a and b None of the above Hint 88). The fixed losses are composed of ______________ loss Windage loss Core loss Bearing friction loss All of the above Hint 89). What is the CGS unit of the magnetic moment? Henry per meter emu/g emu None of the above Hint 90). What one of the following is represented by a symbol V? Magnetic flux Magnetic moment Potential difference None of the above Hint 91). The variable losses are composed of ______________ Rotor ohmic loss Stator ohmic loss Stray load loss All of the above Hint 92). The S-I equation of voltage or EMF is _______________ H=NI/1C ф=BAc W=m/v V=-Ndф/dt Hint 93). The field strength is ____________ in electrostatic Volts per meter Amperes per meter Meter per second None of the above Hint 94). The field strength is ____________ in magnetostatic Volts per meter Amperes per meter Meter per second None of the above Hint 95). The opposite charges attracts in ___________ field Electric Magnetic Both a and b None of the above Hint 96). The charges repel in _____________ field Electric Magnetic Both a and b None of the above Hint 97). The S-I unit of magnetic permeability of vacuum is _______________ Tesla Ampere/meter Weber Newton/meter^2 Hint 98). In the newton law of gravitation the force is _____________ Attractive Repulsive Both a and b None of the above Hint 99). The opposite poles attracts in ___________ field Electric Magnetic Both a and b None of the above Hint 100). In coulombs law of charge, the force is _____________ Attractive Repulsive Can be attractive or repulsive None of the above Hint Time is Up! Time's up
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