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| 1. |
Two cells of emf E1 and E2 are to be compared in a potentiometer (E1>E2). When the cells are used in series correctly , the balancing length obtained is 400cm. When they are used in series but E2 is connected with reversed polarities, the balancing length obtained is 200cm. Ratio of emf of cells is |
| Answer» Two cells of emf E1 and E2 are to be compared in a potentiometer (E1>E2). When the cells are used in series correctly , the balancing length obtained is 400cm. When they are used in series but E2 is connected with reversed polarities, the balancing length obtained is 200cm. Ratio of emf of cells is | |