A) only R
B) only C
C) R and C
D) only L
Correct Answer: D
Solution :
When a circuit contains inductance only, then the current lags behind the voltage by the phase difference of \[({{k}_{1}}+{{k}_{2}})F=-{{k}_{1}}{{k}_{2}}y\] or \[\Rightarrow \]. While in a purely capacitive circuit, the current leads the voltage by a phase angle of \[F=-\frac{{{k}_{1}}{{k}_{2}}}{{{k}_{1}}+{{k}_{2}}}y\] or \[\frac{{{k}_{1}}{{k}_{2}}}{{{k}_{1}}+{{k}_{2}}}\]. In a purely resistive circuit current is in phase with the applied voltage.
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