A variable-frequency a.c. source is connected to a capacitor.Will the displacement current increases or decreases with increases in frequency?

A variable frequency a.c. source is connected to a capacitor. How will the displacement current change with decrease in frequency.

Explain why the reactance provided by a capacitor to an alternating current decreases with increasing frequency.

A 200 V varialbe frequency a.c. source is connected to a series combination the L= 5H , C = 80 mu F and R = 40 Omega . Calculate the angular frequency of the soucre to get maximum current in the cicuit, the current amplitude at resonance and power dissipated in the circuit.

When a.c passes through a capacitor, the current.

If potential difference across resistor is increased, will the current increase or decrease?

frequency of a.c. source is doubled. How do R, X_1 , X_c get affected?

When a capacitor is connected in series LR circuit the alternating current flowing in the circuit increases. Explain why.

A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an a.c. source of 200 V, 100 hz is connected across the coil, the current in the coil? Find the current of the coil

The given circuit diagram shows a series LCR circuit connected to a variable frequency 230 V source. Obtain the impedacne of the circuit and the amplitude of current at resonating frequency.