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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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131
Strength of magnetic field is measured in SI units, in:
132
If in a circular coil A of radius R current I is flowing and in another coil B of radius 2R a current 2I is flowing, then the ratio of the magnetic fields B_A and B_B produced by them will be
133
Tick the ferromagnetic substance:
134
A magnetic field of 4.0 × 10^-3 k T exerts a force of (4.0 i + 3.0 j) × 10^-10 N on a particle having a charge of 1.0 × 10^-9 C and moving in the x-y plane. The velocity of the particle is
135
The presence of a magnetic field can be detected by a
136
If we doubled all the parameters of the force acting on current carrying conductor and θ = 90° then magnetic force becomes:
137
A long copper pipe carries a current. Then the magnetic field is
138
13. A proton and an α-particle enter a uniform magnetic field perpendicularly with the same speed. If proton takes 25 μs to make 5 revolutions, then the periodic time for the α-particle would be
139
The magnetic field B within the solenoid having n turns per metre length and carrying a current i ampere is given by
140
Above ____ temperature an antiferromagnetic substance becomes paramagnetic.