Electricity and Magnetism MCQ question and answer with solution

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Each section contains 100 MCQs on Electricity and Magnetism .

Water cannot be used to extinguish fire caused by electric current because it may

A) cause electrocution B) cause hydrolysis C) cause electrolysis D) spoil the wiring

Discuss

Answer & Solution

Answer: Option A

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

A current of 0.75A is drawn by a filament of an electric bulb in 9 minutes. Find the amount of electric charge flowing through the current.

A) 225 C B) 270 C C) 240 C D) 405 C

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Answer & Solution

Answer: Option D

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

A good conductor while carrying current is

A) negatively charged B) positively charged C) electrically neutral D) alternately charged positive and negative

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Answer & Solution

Answer: Option C

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

Lightning is caused due to electric

A) power B) discharge C) leak D) pressure

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Answer & Solution

Answer: Option B

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

. . . . . . . . commonly used in electro-heating devices.

A) nichrome B) copper C) iron D) aluminum

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Answer & Solution

Answer: Option A

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

Generator is a device which converts . . . . . . . .

A) Thermal energy into Mechanical energy B) Mechanical Energy into Electrical eneregy C) Electrical Energy into Thermal Energy D) Electrical energy into Mechanical Energy

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Answer & Solution

Answer: Option B

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

Electrical fuse is based on which of the following?

A) Magnetic effect of current B) Cooling effect of current C) Heating effect of current D) Electromagnetic induction

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Answer & Solution

Answer: Option C

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

Why the batteries are used in electrical circuits?

A) to generate current B) to produce electrons C) to generate potential difference D) to measurement of potential difference

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Answer & Solution

Answer: Option C

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

A dynamo which is said to generate electricity actually acts as a

A) Source of ions B) Source of electric charge C) Converter of energy D) Source of electrons

Discuss

Answer & Solution

Answer: Option C

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

What will be the resultant resistance of a circuit that has three resistors of each 25 Ω in series?

A) 100 Ω B) 75 Ω C) 105 Ω D) 25 Ω

Discuss

Answer & Solution

Answer: Option B

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