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in average current over a half cycle can be zero?
Asked by nikanaujiya147 | 08 Nov, 2023, 08:23: AM
Expert Answer
Yes, the average current over a half cycle can be zero, depending upon the type of waveform.
For example, in an alternating current (AC) circuit, if the current waveform is a symmetric one, such as a sine wave, then the current flows in both positive and negative directions over the half cycle.
Thus, the positive and negative portions cancel out each other, leading to an average current of zero over that half cycle.
So, during the positive half cycle, the average current might be positive and during the negative half cycle, it could be negative.
If you average these over a complete cycle, the positive and negative values cancel each other out and result in an average current of zero.
Also, note that this property applies mainly to the symmetric AC waveforms like sine waves. Other waveforms, such as asymmetric ones or those with a DC offset, might not have an average current of zero over a half cycle.
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