The core of an electromagnet is said to be in saturation when:

A the core is permitted to move freely within the coil
B an increase in current through the coil causes no further increase in the mmf
C frequent changes in the direction of current through the coil causes heating effects in the core material
D changing the polarity of the current in the coil changes the polarity of the magnetic field around the core
E None of the above

Correct Answer: an increase in current through the coil causes no further increase in the mmf

Bissoy MCQ
#Computer Science #Electronic Principles

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