A electric circuit element has reactance `X` in which `AC` current is ahead of voltage by a phase `pi/2` .If the frequency of `AC` become double, then the reactance will be....

In a pure capacitive circuit if the frequency of ac source is doubled, then its capacitive reactance will be

A capacitor has capacity C and reactance X. If capacitance and frequency become double, then reactance will be

With increase in frequency of an AC supply, the inductive reactance:

The capacitive reactance in an A.C. circuit is

With increase in frequency of an AC supply, the capacitive reactance:

When the frequency of AC is doubled, the impedance of an LCR series circuit

The reactance of a capacitor of capacitance C is X. If both the frequency and capacitance be doubled, then new reactance will be (a) X (b) 2X (c) 4X (d) (X)/(4)

In a circuit, the current lags behind the voltage by a phase difference of pi//2 , the circuit will contain which of the following ?

A 15.0 mu F capacitor is connected to a 220 V, 50 Hz source. Find the capactive reactance and the current (rms and peak) in the circuit. If the frequency is doubled. What happens to the capactive reactance and current ?

For wattless power is an AC circuit, the phase angle between the current and voltagge is