Question

In the question given below, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements mark the correct answer.

Assertion (A): Terminal voltage of a cell is greater than emf of the cell, during charging of the cell.

Reason (R): The emf of a cell is always greater than its terminal voltage.

• A. Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
• B. Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'
• C. 'A' is true and 'R' is false
• D. 'A' is false and 'R' is true

Answer 1

The correct option is C 'A' is true and 'R' is false

During charging, the terminal voltage across the battery is greater than the emf of the cell. Then only the cell will be charged i.e the current will flow through it.

EMF is greater than the terminal voltage only when the cell delivers the current to the external circuit.