Q102
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
AnswerC.
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
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board