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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 conductor has zero electric field inside but a nonzero field outside. What is the most correct meaning?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIn which situation can local positive and negative regions form on a conductor with zero net charge?Class 12Electric Charges and FieldsConductors and InsulatorsMedium 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 placed in an external electric field?Class 12Electric Charges and FieldsConductors and InsulatorsMedium 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 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 PhysicsWhy does a person inside a car receive relative protection during a lightning strike?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsHow does a closed metal cage protect its interior from an external electrostatic field?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf the electric field inside a closed conductor is zero, what can be said about the energy associated with the electric field inside it?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 is excess charge considered to 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 PhysicsWhy may charge not divide equally between two unequal conductors in contact?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsWhy can the final charge become equal when two identical metal spheres are brought into contact?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhich condition is most suitable for retaining static charge on a metal object for a long time?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhy is it difficult to retain static charge on a metal object held by hand?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat is the basic mistake in treating an insulator as equipotential like a conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf charge is localized on an insulator, how can the electric field around it be?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does charge produced by rubbing on an insulator not spread uniformly over the whole surface?Class 12Electric Charges and FieldsConductors and InsulatorsEasy