Q
A transformer cannot raise or lower the voltage of a D.C. supply because_______________?
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A
A. There is no need to change the d.c. voltage
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B
B. A d.c. circuit has more losses
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C
C. Faraday’s laws of electromagnetic induction are not valid since the rate of change of flux is zero
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D
D. None of the above
Correct Answer:
C. C. Faraday’s laws of electromagnetic induction are not valid since the rate of change of flux is zero
