A voltmeter measures the difference in the ____ in a coulomb of charge, we call this a potential difference. If the charges are given more energy it gives them more ____ to move around the circuit. To do this a voltmeter must be connected in ____ as it has to be able to measure the difference in the energy at ____ points in the circuit. The unit for voltage is called a Volt and the symbol is ____.

Measuring potential difference

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