A) To minimize the magnetic effect on the pin
B) To maximize the magnetic effect on the pin
C) To minimize the friction between the pin and the compass needle
D) To ensure that the compass needle will not drop from the pivoted point
Correct Answer: C
Solution :
By pivoting the compass needle on a fixed pin, the friction between the needle and the fixed pin is minimized and the compass needle can rotate freely in the magnetic field.
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