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If 10⁹ electrons move out of a body to another body every second, how much time is required to get a total charge of 1 C on the other body?
How much positive and negative charge is there in a cup of water?
(a) Explain the meaning of the statement 'electric charge of a body is quantised'. (b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?
A polythene piece rubbed with wool is found to have a negative charge of 3 × 10⁻⁷ C.
ASSERTION: When charged balloon is put against on insulating wall, it get stick to the wall. REASON: Wall acquire a net negative charge & thus attract balloon.
ASSERTION (A): Charge cannot exist without mass. REASON: The particles such as photon or neutrino which have no (rest) mass are uncharged.
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