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Introduction to Semiconductors

The potential...

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The potential difference across the terminals of a battery is 8.4V when there is a current of 1.5V in the battery from the negative to the positive terminal. When the current is 3.5A in the reverse direction, the potential difference becomes 9.4V. (a) What is the internal resis†an ce of the battery? (b) What is the emf of the battery?

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