Ammeter connected in circuit: MCQ with Answer and Explanation

Ammeter connected in circuit:

A. Series

B. Either

C. Across power supply

D. Parallel

Answer: Option A

Solution (By JKExamLibrary)

Ammeter measures current, must be in series so same current flows through it. Low resistance minimizes circuit disturbance. Voltmeter connects in parallel. Memory aid: 'Ammeter = series (low R); Voltmeter = parallel (high R)'. Circuit connection rule frequently tested in competitive electricity sections.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

Two 60 W bulbs are connected in series across 220 V. Each bulb power becomes (approximately)

A. 30 W

B. 120 W

C. 60 W

D. 15 W

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Correct Answer: Option D

Explanation:
Each bulb R = 220²/60 ≈ 807 Ω. Series total R=1614 Ω, current = 220/1614 ≈0.136 A. Power per bulb = I²R = (0.136)²×807 ≈ 15 W.

This question belongs to: Science Physics

Question #2 Report Error

The unit of electric current in CGS system is

A. Statampere

B. Coulomb

C. Abcoulomb

D. Ampere

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Correct Answer: Option A

Explanation:
CGS electrostatic unit of current is statampere. EMU is abampere. SI is ampere.

This question belongs to: Science Physics

Question #3 Report Error

The splitting of white light into seven colours is called

A. Scattering

B. Total internal reflection

C. Refraction

D. Dispersion

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Correct Answer: Option D

Explanation:
Dispersion: separation due to different refractive indices for different colours. Refraction is bending. Scattering (Tyndall effect) makes sky blue. Total internal reflection in optical fibers.

This question belongs to: Science Physics

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