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Two ideal batteries having emf `E_1 and E_2` are connected as shown in Figure .The values of resistances are chosen in such a way that ammeter reading is zero. The reading of voltmeter will be (consider the meters to be ideal) A. `E_1`B. `E_2`C. In between `E_1 and E_2`D. nothing can be predicted about voltmeter reading from the given information. |
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Answer» Correct Answer - B b. The ammeter is not showing any reading. It means the potential drop across CB due to `E_1` is equal to that of the emf `E_2` . And this is the reading of the voltmeter. |
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