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Chapter1 Electric Charges And Fields

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

PhysicsWhy must earthing be removed before the external object is removed during charging by induction?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does the net charge remain unchanged when induction occurs in a neutral conductor without contact or earthing?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does a negative effect appear at the far end of a neutral conductor when a negatively charged rod is brought near it?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does a positive effect appear at the far end of a neutral conductor when a positively charged rod is brought near it?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does the surface charge distribution change when an external charge is brought near an isolated conductor?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsCharge spreads uniformly on an isolated spherical conductor but not necessarily on an irregular conductor. What is the main reason?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy is ionisation of air more likely near a sharp conducting tip?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy does surface charge density vary over a conductor having regions with different curvatures?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsThe electric field just outside a conductor is perpendicular to its surface. Which conclusion follows from this fact?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy must the component of electric field parallel to a conductor surface be zero in electrostatic equilibrium?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsIf the electric field inside a conductor is zero is it impossible to have electric field outside it?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhy can an external charge not produce a field inside an empty cavity of a closed conducting shell?Class 12Electric Charges and FieldsConductors and InsulatorsHard PhysicsIf a negative charge inside the cavity of a neutral conductor is not touching the conductor what will be the total charge on the outer surface?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsHow is a positive charge placed in the cavity of a neutral conductor balanced so that the electric field inside the conducting material remains zero?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat broad conclusion follows from an advanced study of conductors and insulators?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsIf a material has very few free charge carriers, which electrostatic behaviour is more likely?Class 12Electric Charges and FieldsConductors and InsulatorsMedium PhysicsWhat is the most fundamental physical basis of the difference between a conductor and an insulator?Class 12Electric Charges and FieldsConductors and InsulatorsEasy PhysicsWhich statement gives the deeper identity of the 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 PhysicsWhich arrangement is best for protecting a sensitive device from external electrostatic effect?Class 12Electric Charges and FieldsConductors and InsulatorsMedium