1. | \(1\) A | 2. | \(2\) A |
3. | \(4\) A | 4. | Infinite |
In the circuit shown below, the cell has an e.m.f. of 10 V and internal resistance of 1 ohm. The other resistances are shown in the figure. The potential difference is :
(1) 6 V
(2) 4 V
(3) 2 V
(4) –2 V
In the circuit, the potential difference across PQ will be nearest to
(1) 9.6 V
(2) 6.6 V
(3) 4.8 V
(4) 3.2 V
The e.m.f. of a cell is E volts and internal resistance is r ohm. The resistance in external circuit is also r ohm. The p.d. across the cell will be
(1) E/2
(2) 2E
(3) 4E
(4) E/4
The terminal potential difference of a cell when short-circuited is (E = E.M.F. of the cell)
(1) E
(2) E/2
(3) Zero
(4) E/3