should the resistance of a voltmeter be low or high?
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resistance of voltmeter should be as high as possible to avoid any error in current of circuit. It is essential that the resistance RV of a voltmeter be very much larger than the resistance of any circuit element across which the voltmeter is connected.
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Explanation:
The resistance of a voltmeter should be high because the voltmeter is always connected in parallel across a device. In order to avoid this, an ideal voltmeter has infinite resistance so that it opposes any kind of current flowing through it. However, practically infinite resistance is not possible. Hence, the resistance of the voltmeter should be as high as possible to avoid any error in the current of the circuit.
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