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Signals and Systems
In an ac circuit the fundamental component of current wave lags the corresponding voltage wave by 20°. The third harmonic component of current wave lags the corresponding voltage by an angle.
less than 20°
more than 20°
equal to 20°
equal to or more than 20°
Correct Answer:
more than 20°
Explanation:
For third harmonic θ = tan
-1
=
.
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