A. using a strong temporary magnet
B. increasing the area and number of turns of the coil
C. using a week hair spring
D. using a light pointer
Correct Answer: Option D
D. using a light pointer
A. using a strong temporary magnet
B. increasing the area and number of turns of the coil
C. using a week hair spring
D. using a light pointer
Correct Answer: Option D
D. using a light pointer
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