which among the following instruments is used to measure either direct | Examsbook

319

Q:
Which among the following instruments is used to measure either direct or alternating electric current?

1
Wattmeter
2
Hygrometer
3
Ammeter
4
Pyrometer

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Answer : 3. "Ammeter"
Explanation :
1. The device which is used to measure electric current in an electric circuit is called ammeter.
2. The resistance of an ideal ammeter is always zero and the electric circuit is always connected in series.

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