Question

Assertion and reason
Assertion (A): When a capacitor is charged by a batter, both the places receive charge

equal in magnitude, no matter the sizes of plates are identical or not.

Reason (R) : : The charge distribution on the plates of a capacitor is in accordance with

the charge conservation principle.​

Answer 1

CONCEPT:While charging a capacitor with a battery. each plate of the capacitor receives equal magnitude of charge with opposite sign.

GIVEN:Assertion (A): When a capacitor is charged by a batter, both the places receive charge equal in magnitude, no matter the sizes of plates are identical or not.

Reason (R): The distribution of charge on the plates of a capacitor is in accordance with the charge conservation principle.

FIND:To find whether

• A and R are correct and R is the correct explanation of A
• A and R are correct and R is not the correct explanation of A
• A and R both are incorrect
• none of the above

SOLUTION:

• When a capacitor is charged by a battery both the plates receives charge equal in magnitude, but with the opposite sign because we want to create charge on the capacitor by charging with a battery.
• The number of electrons in the circuit is constant. The power supply. can't create or destroy electron by following the charge conservation. principle.
• While charging capacitor electron flows from bottom plate giving it positive charge to top plate making it negative by following the charge conservation principle.

Hence the correct answer is option (A)i.e, both the assertion and reason are correct and reason is the correct explanation of assertion.

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