a
it is a temporary magnet
b
its strength depends on the current
c
its stength depends on the number of turns in its coil
d
it has permanent poles
Explanation
Correct Option
dVideo Explanation
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Discussions (7)
Ifennaoffor
3 years ago
The question is wrong. It's meant to be, Which of the following statements about an electromagnet is not correct?
Then only under this condition is where option D stands correct.
Don't be indolent.
