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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.
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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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241
H+, He+ and O++ all having the same kinetic energy pass through a region in which there is a uniform magnetic field perpendicular to their velocity. The masses of H+, He+ and O++ are 1 a.m.u., 4 a.m.u. and 16 a.m.u. respectively. Then
242
Which of the following instruments is used for measuring magnetic field?
243
A proton of mass m and charge +e is moving in a circular orbit in a magnetic field with energy 1 MeV. What should be the energy of an α-particle (mass 4m and charge +2e) so that it can revolve in the path of same radius as that of proton?
244
The property of an object that causes it to create a magnetic field in opposition to an externally applied magnetic field is
245
Magnetic lines of force:
246
μ0 is called:
247
The force acting on current carrying conductor will be maximum if the angle between magnetic field and conductor is:
248
A charged particle of charge q and mass m enters vertically in a magnetic field B. If kinetic energy of the particle is E then frequency of rotation of that particle will be ____.
249
Which quantity is not affected by a magnetic field?
250
The magnetic susceptibility of a material is 7.54 × 10^-3. The nature and relative permeability of the substance is