Which instrument is used to measure electric current? MCQ with Answer and Explanation

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Which instrument is used to measure electric current?

A. Voltmeter

B. Ammeter

C. Galvanometer

D. Potentiometer

Answer: Option B

Solution (By JKSSB Mock Tests)

An ammeter is a measuring instrument used to measure the current in a circuit.

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Question #1

Which metal is the best conductor of electricity?

A. Gold

B. Aluminum

C. Silver

D. Copper

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Correct Answer: Option C

Explanation:
Silver is the most electrically conductive element, although copper is often used due to cost.

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Question #2

What is the chemical name of common salt?

A. Sodium chloride

B. Calcium chloride

C. Sodium carbonate

D. Potassium chloride

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Correct Answer: Option A

Explanation:
Common salt is sodium chloride.

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Question #3

GSLV stands for:

A. Geostationary Satellite Launch Vehicle

B. Global Satellite Launch Vehicle

C. Geosynchronous Satellite Launch Vehicle

D. General Satellite Launch Vehicle

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Correct Answer: Option C

Explanation:
GSLV is used for launching heavier satellites.

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