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Class 12 Mcq

Class 12 Physics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

PhysicsA positive charge is placed inside the cavity of a neutral conductor. What is the total induced charge on the inner surface?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat broad conclusion comes from advanced study of conductors and insulators?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsIf a material has very few free charge carriers, what behaviour is more likely in electrostatics?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat is the most fundamental physical basis of the difference between conductor and insulator?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhich gives a deeper identity of electrical behaviour of an insulator?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhich is the complete identity of electrostatic equilibrium for a conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIn which situation will a sensitive device inside a conductor be most protected from external electrostatic effect?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf a conductor has zero field inside but field exists outside, which statement is most correct?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf a conductor has zero net charge but local positive and negative regions on its surface, how should this be understood?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsA charged comb attracts small pieces of paper. What is the correct advanced reason?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsWhat microscopic change can occur inside an insulator in an external electric field?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsIf an insulator has localized charge, why may touching one point to earth not discharge the whole object immediately?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat is the main physical reason for keeping the tip of a lightning rod sharp?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsWhy is a lightning protection rod made of metal and connected to earth?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsA person inside a car gets relative protection during lightning due to which principle?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does a closed metal cage protect from an external electrostatic field?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsThe electric field inside a closed conductor is zero. Which statement about energy associated with the electric field is correct?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsToward which state do free charges move while a conductor reaches electrostatic equilibrium?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf volume charge density inside a conductor is zero in electrostatic equilibrium, where will excess charge be?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsThe electric field inside a conductor is zero. Does this prove that there is no charge on the conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium