A constant voltage at different frequencies i | vedclass

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(B) For a capacitive circuit,the capacitive reactance is given by $X_C = \frac{1}{\omega C}$.The current $I$ in the circuit is given by $I = \frac{V}{

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(B) For a capacitive circuit,the capacitive reactance is given by $X_C = \frac{1}{\omega C}$.The current $I$ in the circuit is given by $I = \frac{V}{X_C}$.Substituting the expression for $X_C$,we get $I = \frac{V}{1/(\omega C)} = V \omega C$.Since the voltage $V$ and capacitance $C$ are constant,the current $I$ is directly proportional to the angular frequency $\omega$ $(I \propto \omega)$.This represents a straight line passing through the origin. Therefore,the graph in option $B$ correctly depicts the variation of current with frequency.

$A$ constant voltage at different frequencies is applied across a capacitance $C$ as shown in the figure. Which of the following graphs correctly depicts the variation of current with frequency?

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