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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।

PhysicsWhich is the most correct comparison between induction in a conductor and polarisation in an insulator?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy can attraction occur in a polarised insulator even though its net charge does not change?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsThe potential of an earthed conductor tends to become equal to what?Class 12Electrostatic Potential and CapacitanceElectrostatics of ConductorsMedium PhysicsWhat problem can occur if the external object is removed first while earthing remains connected in induction charging?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy is it necessary to remove earthing first and the external charged object later in induction charging?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIn an earthed conductor near a negatively charged rod, in which direction can electrons move?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIn an earthed conductor near a positively charged rod, in which direction can electrons move?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat is the main role of earthing in actual charging by induction?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf a charged object is only brought near a conductor and the conductor is neither touched nor earthed, what happens to its net charge?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhat effect appears at the near end when a negatively charged rod is brought near a neutral conductor?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhat happens at the near and far ends when a positively charged rod is brought near a neutral conductor?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhy can surface charge distribution change when an external charge is brought near a spherical conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does charge spread uniformly on an isolated spherical conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy is electric discharge more likely at a sharp metal tip?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsWhat is the basic reason for the stronger electric field near a sharp conducting tip?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsThe local value of electric field near a conductor surface is most closely related to what?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsWhat is the direction of the electric field just outside the surface of a conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy can the parallel component of electric field not remain on a conductor surface in static condition?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf a positive charge is in a cavity and the conductor is earthed, which statement about the total charge on the outer surface is correct?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsA negative charge is placed inside the cavity of a neutral conductor. What will be the total charge on the outer surface?Class 12Electric Charges and FieldsConductors and InsulatorsMedium