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1. |
Transformer excited from a sinusoidal voltage source will draw a no-load current, which |
A. | is sinusoidal and of the same frequency as the voltage source. |
B. | comprises the fundamental frequency (same as that of the voltage source) and the peaking third harmonic. |
C. | comprises the fundamental frequency and the depressing third harmonic. |
D. | is sinusoidal of frequency three times that of the voltage source. |
Answer» C. comprises the fundamental frequency and the depressing third harmonic. | |