Electrical Conductor Question & Answers February 20, 2023 By Wat Electrical This article lists 100 Electrical Conductor MCQs for engineering students. All the Electrical Conductor Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Electrical conductors. Electrical conductors are the materials or substances that allow electricity to flow through them. When there is a supply of voltage the charge-carrying elements called electrons are easily movable from one atom to other. Metals are good electric conductors whereas non-metals do not conduct electricity and are bad electric conductors. Generally, Conductivity refers to the substance's capacity to transmit heat or electricity. A little or zero resistance is offered by the conductor. The electrons flowing in conductors have no restrictions and lead to current flow in them. Metals & their alloys, graphite, and electrolytes are some of the examples referred to as good conductors. Human beings are one example of good electrical conductors. In electronic & electrical systems, the conductors are comprised of solid-type metal that is molded in the wires form or else etched on Printed Circuit Boards. Even water is also an example of a good electrical conductor. Electrons in conductors are moved freely compared to semiconductors. The electric field inside conductors will remain zero allowing the movement or the free flow of electrons. For outside the electrical conductors, the electric field to the surface of the conductor is perpendicular. Higher thermal conductivities are offered by the Electrical conductors. 1). What allows the flow of charges through them? Insulators Conductors Dielectric Non-Conductor Hint 2). What provides the material capable of transmitting heat or electricity? Resistance Conductance Capacitance Inductance Hint Read more about Electrical Conductor 3). What is available in abundance in conductors? Electrons Protons Neutrons Photons Hint 4). What allows the passage of electricity for applied voltages? Electrons Protons Neutrons Photons Hint 5). Metals can _____ electricity? Restrict Stop Does not Allow Conduct Hint 6). Which block in the periodic table belongs to the conductor? A Block B Block C Block D Block Hint 7). Saturated solution of salt is _____? Insulators Conductors Dielectric Non-Conductor Hint 8). What are the bad electric conductors? Gases Solids Liquid Metals Hint 9). It is easy to pass electricity through _____? Insulators Conductors Dielectric Non-Conductor Hint 10). Why are coppers used for filling electric cables? High Resistivity Low Conductivity High Conductivity Low Capacity Hint 11). What is the density of charge inside conductors? Infinite Zero Unity Finite Hint 12). What does the conductivity of the substance is referred to? Capacity to Transmit Electricity Resistivity to Transmit Electricity Tendency to Prevent the Electrons Flow Capacity to Block the Current Flow Hint 13). What is the resistance offered by the conductors ideally? Infinite Zero Unity Finite Hint 14). Elemental silver in the purest form is __________? Insulators Conductors Dielectric Non-Conductor Hint 15). What does not conduct electricity? Non-metals Solids Liquid Metals Hint 16). Increase in ions concentration _________ the conductivity? Increase Decrease Remains the Same Does not Affect Hint 17). Which liquid can conduct electricity? Lemon Juice Common Salt Solution Vinegar All Mentioned Above Hint 18). Does rainwater conducts electricity? Impossible Does not Conduct May or May not Conduct Can Conduct Hint 19). Can milk conduct electricity? Impossible Does not Conduct May or May not Conduct Can Conduct Hint 20). Pure water __________ electricity? Conduct Resist Does not Conduct May or May not Conduct Hint 21). Which can conduct electricity faster? Silver Water Diamond Cane Sugar Hint 22). What are metals that are highly or more conductive? Silver Gold Copper All Mentioned Above Hint 23). Why metals are great conductors? More Free Electrons Fewer Electrons More Protons More Neutrons Fewer Protons Hint 24). Carbon in graphite form is _____________? Insulator Conductor Dielectric Non-Conductor Hint 25). Conductors in the form of solution are referred to as __________? Isotropic Conductor Ionic Conductor Bad Conductor a & b Hint Electrical Conductor MCQs for Interviews 26). Sigma is the symbol to represent __________? Electrical Resistivity Electrical Conductivity Impedance Reflectivity Hint 27). What is the unit of electrical conductivity? Ohms per m Volt per m Joules Siemens per m Hint 28). How temperature increase affects the conductor? Conductor Geometry is Changed Change in Characteristic Resistance Conductor Geometry Unaffected a & b Hint 29). Which metal is used commonly in electric-power transmissions? Copper Silver Platinum Aluminium Hint 30). What is ampacity in conductors? Capacity to Carry Voltage Capacity to Carry Current Capacity to Carry Data a & b Hint 31). A low-resistance conductor carries _________ current? Less Large Zero No Current Flows Hint 32). What is ACSR? Aluminum Conductor Steel Reinforced Aluminum Condenser Steel Reinforced Aluminum Condenser Steel Relay Anti Conducting Steel Relay Hint 33). Why large conductors can lose lesser energy? High Electrical Resistance Low Electrical Resistance Low Conductivity Infinite Impedance Hint 34). What happens to the conductor if the heat is produced due to the current flow? Conductor Length Increases Conductor Length Decreases Conductor Length is the Same Conductor Length is Constant Hint 35). What is used in reducing the 'Corona effect'? Insulators Conductors Dielectric Non-Conductor Hint 36). Bundled conductors increase _________? Voltage Carried Current Carried Noise Carried a & b Hint 37). What is reduced by Bundled conductors? Magnetic Field Gradient Electric Field Gradient Electric Intensity Electric Power Hint 38). How Bundled Conductors can cool themselves? Increased Current Increased Voltage Increase Surface Area Decreased Charges Hint 39). Bundled conductors have ______________? High Reactance Low Reactance Zero Reactance Infinite Reactance Hint 40). Electrical conduction is dependent on ______________? Movement of Protons Movement of Neutrons Movement of Electrons Movement of Photons Hint 41). All types of liquids can ________________? Does Not Conduct Conduct May or May not Conduct None Hint 42) . Where do the electric charges are present in conductors? Inside On Surface Center Outside Hint 43). What happens to the conductor when it is placed in a magnetic field? Energy is Stored Energy is not Stored Charges are Stored Charges are Floated Hint 44) . Heat allowances in the conductors are _________? Low Moderate Zero High Hint 45). Electron mobility is ______ in conductors? Low Moderate Zero High Hint 46). Electric field inside conductors is ______? Low Moderate Zero High Hint 47). Thermal conductivity will be high in _________? Insulators Conductors Dielectric Non-Conductor Hint 48). What is the potential at conductor ends? Low High Distinct Same Hint 49). What happens when the potential at any end of the conductor is varied? Protons Tend to Flow Neutrons Flow Electrons Start to Flow No Electrons Flow Hint 50). Electric field to surface is perpendicular in _________? Insulators Conductors Dielectric Non-Conductor Hint Electrical Conductor MCQs for Students 51). What is the energy gap in conductors? High Low Moderate No Energy Gap Hint 52). What happens to bands in the conductors? Moved Away Moved Far Overlap Does not Overlap Hint 53). How are conductivity and temperature related to each other? Directly Independent No Relation Inversely Hint 54). Why the material conducting ability is reduced? Decreasing Temperature No Change in Temperature Rising Temperature Degrading Temperature Hint 55). In how many types of conductors are classified based on ohmic responses? Four Three Two One Hint 56). Which law is followed by the Ohmic conductor? Faraday’s Law Kelvins Law Kirchoff’s Law Ohms Law Hint 57). What are the various examples of Ohmic conductors? Aluminum Copper Silver All Mentioned Above Hint 58). Non-ohmic conductors do not obey ________? Faraday’s Law Kelvins Law Kirchoff’s Law Ohms Law Hint 59). What are the examples of non-ohmic conductors? Thermistors Photo Resistors Vacuum Tubes Filament Lamp All Mentioned Above Hint 60). What is used in creating a path to flow electricity? Insulators Conductors Dielectric Non-Conductor Hint 61). Electrons in the outer shell of atoms are bounded loosely in _________? Insulators Conductors Dielectric Non-Conductor Hint 62). Why silver is considered the best electric conductor? Single Valence Electron Crystal Structure is Unique No Valence Electron a & b Hint 63). What are the examples of weak conductors? Aluminum Copper Silver Plastic Hint 64). Which is the poorest electricity conductor? Aluminum Copper Silver Tungsten Hint 65). Which material is commonly used as a conductor? Aluminum Copper Silver Tungsten Hint 66). Why covalent compound is bad electricity conductor? More Free Electrons No Free Electrons Increased Free Electrons None Hint 67). What happens to the conductivity of the electrolytic conductor due to an increase in temperature? Increased Conductivity Decreased Conductivity Increased Resistance Decreased Electrons Hint 68). Resistance is the inverse of ___________? Impedance Power Conductance All Mentioned Above Hint 69). What are the filaments made of wires of metal? Insulators Conductors Dielectric Non-Conductor Hint 70). LDRs are the examples of _________? Ohmic Conductors Insulators Non-ohmic Conductors Resistors Hint 71). Which offers the reverse functionality to insulators? Semiconductors Conductors Dielectric Non-Conductor Hint 72). What affects the conductor resistivity? Material Used Temperature Charges a & b Hint 73). Which material has electric conduction among conductors & insulators? Insulators Conductors Dielectric Semiconductors Hint 74). What is the resistance offered by superconductors? Low Infinite High Zero Hint 75). Electric wires are made using_____ metals? Insulators Conductors Dielectric Non-Conductor Hint Electrical Conductor MCQs for Exams 76). Why silver is utilized in the auto-part industry? Insulators Conductors Dielectric Non-Conductor Hint 77). What is the resistance offered by silver? Low Infinite High Zero Hint 78). Which material is present in the power cable? Aluminum Copper Silver Tungsten Hint 79). Cable wires contain ______? Insulators Conductors Dielectric Non-Conductor Hint 80). What can be added to the connectors? Insulators Conductors Dielectric Non-Conductor Hint 81). Phonons can disrupt ________ path in the conductors. Electrons Protons Neutrons Photons Hint 82). Conductors having a large area of cross-section offer _________? High Resistance Less Resistance Low Conductance a & c Hint 83). On what factors does the resistance in the conductor depend? Material Used Temperature Conductor Size All Mentioned Above Hint 84). If current & voltage are varied for the ohmic conductor. What happens to resistance? Increases Decreases Remains Constant Varies Hint 85). How is the relation between current & voltage in Ohmic Conductors? Linear Non-Linear Independent None Hint 86). Diodes are the examples of _____________? Isotropic Conductor Ionic Conductor Ohmic Conductor Non-ohmic Conductor Hint 87). If materials with applied electric field & the current induced in similar directions, that material is _________________? Isotropic Conductor Ionic Conductor Ohmic Conductor Non-ohmic Conductor Hint 88). Diamond is one of the poor __________? Insulators Conductors Dielectric Non-Conductor Hint 89). Can a water from tap conduct electricity? Impossible Does not Conduct May or May not Conduct Can Conduct Hint 90). What do car radiators contain? Insulators Conductors Dielectric Non-Conductor Hint 91). Cooking vessel contains ___________ materials? Conducting Non-conducting Insulating Dielectric Hint 92). What does a pressing iron contain? Insulators Conductors Dielectric Non-Conductor Hint 93). Soldering tool contains ____________? Insulators Conductors Dielectric Non-Conductor Hint 94). Copper offers _______? High Resistivity Low Conductivity High Conductivity Low Capacity Hint 95). What material is present in tools used for baking? Conducting Non-conducting Insulating Dielectric Hint 96). Gold has __________? High Resistivity Low Conductivity High Conductivity Low Capacity Hint 97). Human beings are ______ of electricity? Insulators Conductors Dielectric Non-Conductor Hint 98). Water is a ________? Insulators Conductors Dielectric Non-Conductor Hint 99). Why iron is utilized in manufacturing engines for vehicles? Insulators Conductors Dielectric Non-Conductor Hint 100). What is used in checking the temperature of body? Insulators Conductors Dielectric Non-Conductor Hint Time's up
