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Signals and Systems

Q1: 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.

A less than 20°

B more than 20°

C equal to 20°

D equal to or more than 20°

ANS:B - more than 20°

For third harmonic θ = tan-1 = .



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