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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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81
A coil of 100 turns and area 2 × 10^-2 m^2 is pivoted about a vertical diameter in a uniform magnetic field and carries a current of 5 A. When the coil is held with its plane in north-south direction, it experiences a couple of 0.3 N m. When the plane is east-west, the corresponding couple is 0.4 N m. The value of magnetic induction is
82
432 At which temperature, a ferromagnetic material is converted into a paramagnetic one?
83
The direction of force on a moving negative charge will be
84
Current passing through the coil of the galvanometer is proportional:
85
A substance in which the atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect is called:
86
Magnetic flux density at any point due to current carrying conductor can be computed by:
87
Due to magnetic field of earth, charged particles coming from outer space
88
A circular loop of area 0.01 m^2 carrying a current of 10 ampere is placed parallel to a magnetic field of intensity 0.1 T. The torque (in N·m) acting on the loop is
89
At which temperature a ferromagnetic material becomes paramagnetic on heating?
90
If horizontal and vertical components of earth's magnetic field are equal, then angle of dip is