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Magnetic Field and Magnetic Flux MCQs

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

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Topic Notes: Magnetic Field and Magnetic Flux

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 Magnetic Field and Magnetic Flux 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 Magnetic Field and Magnetic Flux.
Past Papers
Includes frequently repeated questions from past examinations.
Solved & Verified
Each question features verified answers and conceptual explanations.

Preparation Guide & Key Focus Areas for Magnetic Field and Magnetic Flux MCQs

When preparing for Magnetic Field and Magnetic Flux 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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171
415 When a diamagnetic substance is inserted in a current-carrying coil, the magnetic field is
172
A current carrying small loop behaves like a small magnet. If A be its area and M its magnetic moment, the current in the loop will be
173
The magnetic field induction at a distance of 4 cm from a long current-carrying wire is 10^-3 T. The magnetic field induction at a distance of 12 cm from the same wire is
174
A cable carrying a direct current is buried in a wall which stands in N-S plane. A horizontal compass needle on the west side of wall is found to point towards south instead of north. The coil lies
175
The strength of magnetic field at certain points around a wire depends upon:
176
If the current in a wire which is placed perpendicular to a magnetic field increases, the force on the wire
177
An electron is moving in a circular path under the influence of a transverse magnetic field of 3.57 × 10^-2 T. If the value of e/m is 1.76 × 10^11 C/kg the frequency of revolution of the electron is
178
The susceptibility of a diamagnetic substance
179
The coil of a galvanometer is suspended between poles of a U-shaped magnet which are:
180
An electron accelerated through a potential difference V passes through a uniform transverse magnetic field and experiences a force F. If the accelerating potential is increased to 2V, the electron in the same magnetic field will experience a force