In an electric circuit, ammeter is connected in MCQ with Answer and Explanation

Question Report Error

In an electric circuit, ammeter is connected in

A. Across load

B. Either

C. Parallel

D. Series

Answer: Option D

Solution (By JKExamLibrary)

Ammeter must be in series to measure full current. Very low internal resistance.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

A hydrometer is used to measure

A. Humidity

B. Atmospheric pressure

C. Density of liquids

D. Wind speed

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Correct Answer: Option C

Explanation:
Hydrometer measures relative density (specific gravity) of liquids based on floatation principle. Deeper sinking indicates less dense liquid. Hygrometer measures humidity, anemometer wind speed, barometer pressure.

This question belongs to: Science Physics

Question #2 Report Error

What is the focal length of a plane mirror?

A. One

B. Negative

C. Infinity

D. Zero

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Correct Answer: Option C

Explanation:
The focal length of a spherical mirror is defined as R/2, where R is the radius of curvature. A plane mirror is essentially a part of a spherical mirror whose radius of curvature is infinity (it is completely flat). Therefore, the focal length of a plane mirror is also infinity.

This question belongs to: Science Physics

Question #3 Report Error

The frequency of a pendulum is 0.5 Hz. Its time period is

A. 5 s

B. 1 s

C. 0.5 s

D. 2 s

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Correct Answer: Option D

Explanation:
T = 1/f = 1/0.5 = 2 s.

This question belongs to: Science Physics

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