Magnetic Force MCQs

Practice Magnetic Force MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Electromagnetic TheoryMagnetic Force

The force on a straight conductor of length L carrying current I in a uniform magnetic field B is, in vector form?

Show AnswerHide Answer Report an error

Correct Answer: A. F = I(L × B)

Explanation: The magnetic force on a straight current element is F=I(L×B).

Reference: Standard electromagnetic theory: magnetic force

Question 2

Electromagnetic TheoryMagnetic Force

Show AnswerHide Answer Report an error

Correct Answer: C. 0.4 N

Explanation: F=BIL sin90°=0.2×4×0.5=0.4 N.

Reference: Standard electromagnetic theory: magnetic force