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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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121
If the number of turns of a solenoid (circular coil) is doubled, but the current in the coil and radius of the coil remains same, then what will be the magnetic flux density produced by the coil?
122
A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 Weber/m^2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of 30° with the direction of the field, the torque required to keep the coil in stable equilibrium will be
123
If current carrying conductor is placed perpendicular to the magnetic field, it will experience a force:
124
An electron and a proton travel with equal speed in the same direction at 90° to a uniform magnetic field as this is switched on. They experience forces which are initially
125
3. The magnetic susceptibility is negative for
126
The material of an electromagnet should have high
127
Magnetic field strength is measured in terms of:
128
A proton moving in a perpendicular magnetic field B possesses energy E. If the magnetic field increases to 8B and the particle is constrained to move in the path of same radius, the kinetic energy will
129
In paramagnetic substances, the orbital axes and spin axes of electrons are so oriented that their fields:
130
An electron is travelling horizontally towards east. A magnetic field in vertically downward direction exerts a force on the electron along