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23 May, 23:01

A voltmeter is connected to the terminals of the battery; the battery is not connected to any other external circuit elements. What is the reading of the voltmeter V? Express your answer in volts. Use three significant figures.

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  1. 24 May, 00:12
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    12 volts.

    Explanation:

    Equal to the emf of battery. internal resistance won't count because the internal resistance is only apparent when a current passes through the battery.
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