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Electromagnetic Induction MCQs for Competitive Exams

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Electromagnetic Induction MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

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Topic Notes: Electromagnetic Induction

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Electromagnetic Induction MCQs in Physics are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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1
The function of a mains transformer is to convert
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2
435 The direction of induced emf during electromagnetic induction can be determined by making use of
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3
In Fig. 13, placed near each other. In Fig. 13 (c), when the current in P changes at the rate of 5 A s^-1, an emf of 2 mV is induced in Q. The current in P is then switched off, and a current changing at 2 A s^-1 is fed through Q as shown in diagram. What emf will be induced in P?
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4
A copper coil having 1000 turns is placed in a magnetic field perpendicular to its axis. The cross sectional area of the coil is 0.05 m2. If it is turned through 180° in 0.01 second, then emf induced in the coil is
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5
The magnitude of motional emf is equal to
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6
When the current changes from 2 A to 4 A in 0.05 second, an e.m.f. of 8 volt is induced in a coil. The coefficient of self induction of the coil is
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7
465 In an induction coil, the secondary emf is
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8
An electric motor could be used as a
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9
468 The value of mutual inductance can be increased by
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10
The inductance of a coil is
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