Question

ii) When the balance point is obtained in the
potentiometer, a current is drawn from
(A) both the cells and auxiliary battery
(B) cell only
(C) auxiliary battery only
(D) neither cell nor auxiliary battery​

Answer 1

When a balance point is obtained in a potentiometer a current is drawn only from the cell.

Option b

Explanation:

• The potentiometer works on the balancing principle of current electricity. as a result of this the internal resistance of the cell can be measured by using the balance point.

• Hence it is important it in  finding the results through the potentiometer balance point. when the potentiometer is not at balance point then the current is drawn from both the cell and the auxiliary battery of the circuit

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Answer 2

When the balance point is obtained in the potentiometer, a current is drawn from (C) auxiliary battery only.

• When the galvanometer arrangement is not balanced, then the potential difference will be generated in the galvanometer.

• This arrangement will be balanced only when there is a potential difference in an auxiliary battery only.