Electricity and Magnetism MCQ question and answer with solution

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Each section contains 100 MCQs on Electricity and Magnetism .

What is the net force experienced by a bar magnet placed in a uniform magnetic field?

A) Zero B) Depends upon length of themagnet C) Never zero D) Depends upon temperature

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Three resistors with magnitudes 2, 4 and 8Ω are connected in parallel, then equivalent resistance of the system would be

A) less than 2Ω B) more than 2Ω but less than 4Ω C) 4Ω D) 14Ω

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Electric current in a metal wire is due to the flow of

A) electrons B) protons C) ions D) holes

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the relation between electric current and potential difference across the conductor?

A) I/V is a constant B) V × I is a constant C) V/I is a constant D) V + I is a constant

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The metal used to make lightning conductor is

A) iron B) aluminium C) copper D) zinc

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Who among the following introduced the concept of electric field for the first time?

A) Blaise Pascal B) Michael Faraday C) Charles Augustin de Coulomb D) Joseph Henry

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The two resistance of 10Ω and 20Ω in series combination are connected with 6V batteries. The electric current in the circuit will be-

A) 0.2 A B) 0.6 A C) 0.9 A D) 0.3 A

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which one of the following physical quantities does not affect the resistance of a cylindrical resistor?

A) The current through it B) Its length C) The resistivity of the material used in the resistor D) The area of cross-section of the cylinder

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The basic difference between an AC generator and a DC generator is that

A) AC generator has an electromagnet while a DC generator has permanent magnet B) AC generator has slip rings while the DC generator has a commutator C) DC generator will generate a higher voltage D) AC generator will generate a higher voltage

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following devices detects the current in the circuit?

A) galvanometer B) ammeter C) voltmeter D) electrometer

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Electricity and Magnetism MCQ question and answer with solution | Physics Gk MCQs