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when is a voltmeter placed in series with the external resistance in a circuit for measuring the external resistance

when is a voltmeter placed in series with the external resistance in a circuit for measuring the external resistance

Grade:11

1 Answers

Akash Kumar Dutta
98 Points
9 years ago

Dear Abhishekh,

The Voltmeter has a very high resistance which makes very less current pass through the circuit.the current can be measured by the ammeter.
the External Resistance can be calculated by=>R=(EMF - VOLTAGE CALCULATED BY VOLTMETER).(CURRENT)
(ANS)

Regards

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