Electromagnetism MCQs
Practice free Electromagnetism multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 221 questions — no login required.
Question 163easy
When a magnet is in motion relative to a coil the induced e.m.f. does not 1 depend upon
Question 164easy
Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per metre of length of each conductor will be
Question 165easy
A 200 turn coil having an axial length f 30 mm and a radius of 10 mm is ivoted in a magnetic field having a flux ensity of 0.8 T. If the coil carries a current of 0.5 A, the torque acting on e coil will be
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Question 166easy
An electromagnet has 50 turns and a rrent of 1 A flows through the coil. the length of the magnet circuit is mm, what is the magnetic field ngth?
Question 167easy
It is the magnitude and the direction rce per 1.1 m length of a pair of uctors of a direct current line ing 10 amperes and spaced 100 mm
Question 168easy
are cross-sectional magnet has a trength of 1 x 10-3 Wb and ctional area of 20 mm x 20 mm.What is the strength at a distance 100 mm from the unit pole in air?
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Question 169easy
A point pole having a streng is placed in a magnetic field at a distance of 250 mm from another pole in a What ir and is acted upon by a force of 1.5 N.is the pole strength of the other pole, Wb