Which instrument is used to measure electric current? With Explanation.

 

Which instrument is used to measure electric current?

A) Thermometer
B) Ammeter
C) Barometer
D) Galvanoscope

✅ Correct Answer: B) Ammeter

 Ammeter

Explanation:

🔌 Ammeter:

An ammeter is an instrument used to measure the flow of electric current in a circuit.

• The unit of measurement is amperes (A).

• An ammeter is always connected in series with the electrical circuit so that all the current flows through it for accurate measurement.

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❌ Explanation of Other Options:

• A) Thermometer:
  Used to measure temperature, not electric current.

• C) Barometer:
  Used to measure atmospheric pressure, typically in weather forecasting.

• D) Galvanoscope:
  An early device used to detect the presence of electric current, but it does not accurately measure the current.