What is the unit for electric current? MCQ with Answer and Explanation

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What is the unit for electric current?

A. Ohm

B. Volt

C. Watt

D. Ampere

Answer: Option D

Solution (By JKSSB Mock Tests)

Electric current is measured in Amperes.

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Question #1

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What is the most abundant gas in the Earth's atmosphere?

A. Oxygen

B. Nitrogen

C. Hydrogen

D. Carbon Dioxide

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Correct Answer: Option B

Explanation:
Nitrogen makes up about 78% of Earth's atmosphere.

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Question #2

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What is the speed of light approximately?

A. 30,000 km/s

B. 150,000 km/s

C. 1,000,000 km/s

D. 300,000 km/s

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Correct Answer: Option D

Explanation:
The speed of light in a vacuum is approximately 300,000 kilometers per second.

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Question #3

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What is the purpose of a firewall in network security?

A. To block unauthorized access to a network

B. To enhance graphic display

C. To speed up internet connection

D. To store backup files

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Correct Answer: Option A

Explanation:
A firewall monitors and controls incoming and outgoing network traffic based on security rules.

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