a
Increases in the number of turn of the coil
b
Decreases in current with the coil
c
Increases in the distance between the pole
d
Increases in current without the coil
Explanation
Correct Option
aNo explanation available
Video Explanation
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awulat
10 years ago
eeh! there is god oh!
who provided this answer, chai chai. a S.S 1 student can do better.
EXPLANATION
The strength of an electromagnet increases with increase in (1)number of turns of the coil
(2)increase in current flowing through the coil
AND ALSO INCREASES WITH DECREASE IN back e.m.f.
PLEASE LET US NOT FOLLOW PAST QUESTIONS BLINDLY ,ALWAYS MAKE YOUR OWN RESEARCH BECAUSE THESE ANSWERS AREN'T GIVEN BY JAMB OFFICIALS. beware!!!
