MCQOPTIONS
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| 1. |
A torch bulb rated as 4.5 W, 1.5 V is connected as shown in the figure. The e.m.f. of the cell needed to make the bulb glow at full intensity is [MP PMT 1999] |
| A. | 4.5 V |
| B. | 1.5 V |
| C. | 2.67 V |
| D. | 13.5 V |
| Answer» E. | |