The potential difference across the terminals of a battery is 8.4 V when there is a current

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The potential difference across the terminals of a battery is 8.4 V when there is a current of 1.50 A in the battery from the negative to the positive terminal. When the current is 3.50 A in the reverse direction, the potential difference becomes 9.4 V.
(a) What is the internal resistance of the battery?
(b) What is the emf of the battery?
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Cambridge International AS And A Level Physics Coursebook

ISBN: 9781108859035

3rd Edition

Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside

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