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Answer to Question #73946 in Electric Circuits for Ayrill

Question #73946
The potential difference across the terminals of a battery is 8.5V when there is a current of 3A in the circuit form the negative to the positive terminal. When the current is 2A in the reverse direction, the potential difference becomes 11V.
(i) What is the internal resistance of the battery?
(ii) What is the e.m.f of the battery?
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