Voltmeters and Ammeters

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6 Terms

1
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What quantity does a voltmeter measure?

Voltage (potential difference)

2
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Why must a voltmeter have high resistance? 

To avoid drawing current and disturbing the circuit

3
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Why is a voltmeter connected in parallel?

Because voltage is measured across a component

4
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What quantity does an ammeter measure?

Current

5
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Why must an ammeter have low resistance?

To avoid reducing the current it is measuring

6
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Why is an ammeter connected in series?

Because current must pass through it to be measured