Q
A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by________________?
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A
A. Variation in coil current
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B
B. Variation in voltage to the coil
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C
C. Change of number of turns of coil
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D
D. The resistance of magnetic path
Correct Answer:
B. B. Variation in voltage to the coil