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Electromagnetic Induction MCQs

Prepare for Electromagnetic Induction MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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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

Master Electromagnetic Induction MCQs for Competitive Exams with our comprehensive, verified question bank. Designed for students and competitive exam aspirants across Pakistan, this study resource provides topic-wise practice questions for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests.

Exam Focus
Aligned with FPSC, PPSC, and CSS syllabus criteria for Electromagnetic Induction.
Past Papers
Includes frequently repeated questions from past examinations.
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Each question features verified answers and conceptual explanations.

Preparation Guide & Key Focus Areas for Electromagnetic Induction MCQs

When preparing for Electromagnetic Induction MCQs (Physics), focus on core definitions, historical timelines, relevant provisions, and commonly tested factual points. Review each question below, test your knowledge against the given options, and inspect the detailed explanation to solidify your understanding.

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81
38. A cylindrical bar magnet is kept along the axis of a circular coil. On rotating the magnet about its axis, the coil will have induced in it
82
The ratio of secondary to primary turns is 9 : 4. If power input is P, what will be the ratio of power output (neglect all losses) to power input?
83
Which of the given factors is increased in a step-down transformer?
84
In the following circuit, in state of resonance, which of the following statements is correct?
85
A galvanometer connected to the secondary coil shows an instantaneous deflection of 7 divisions when current is started in the primary coil of a solenoid. Now if the primary coil is suddenly rotated through 180°, then the new instantaneous deflection will be
86
489 A pure capacitor is connected in an AC circuit. The power factor of the circuit will be
87
A rectangular coil of 20 turns and area of cross section 25 sq cm has a resistance 100 ohm. If a magnetic field which is perpendicular to the plane of coil changes at a rate of 1000 tesla per sec, the current in the coil is
88
The most common source of an A.C. voltage is:
89
In a transformer, the number of turns of primary coil and secondary coil are 5 and 4 respectively and if 220 V is applied on the primary coil, then the ratio of primary current to the secondary current will be
90
In an LCR circuit, in the state of resonance, which of the following statements is correct? cos φ =