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    				| 1. | In figure, AB is a potentiometer wire of length 100 cm.The cell of emf 3 V has a negligible internal resistance.What is the reading in voltmeter V, if BC is equal to70 cm? | 
| Answer» Answer: FIGURE, AB is a POTENTIOMETER wire of length 100 cm. The CELL of emf 3 V has a negligible internal resistance. What is the reading in voltmeter V, if BC is equal to 70 cm? | |