MCQOPTIONS
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| 1. |
A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is |
| A. | 15ohm |
| B. | 10ohm |
| C. | 5ohm |
| D. | 30ohm |
| Answer» B. 10ohm | |