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| Q.42 | A slide wire is used for the measurement of current in a circuit. The voltage across a standard resistance of 1.0 Ω is balanced at 75 cm. Find the magnitude of the current if the standard cell having an EMF of 2 V is balanced at 50 cm. | |
| Ans | 1. 3 A | |
| 2. 4 A | ||
| 3. 2 A | ||
| 4. 5 A |
Correct Ans: 1
