What is the reactance of a capacitor connected to a constant `DC` source?

An electric lamp of 100 Omega , a toaster of resistance 50 Omega , and a water filter of resistance 500 Omega are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances and what is the current through it?

What is series connection of capacitors ?

A pure capacitor of capacitive reactance of 10 Omega is connected to an A.C. source. If the frequency of a source is doubled, the capacitive reactance will be ....... Omega .

What is parallel connection of capacitors ?

Two electric bulbs whose resistances are in the ratio of 1:2 are connected inparallel to a constant voltage source. The powers dissipated in them have the ratio

A capacitor has some dielectric between its plates and the capacitor is connected to a DC source. The battery is now disconnected and then the dielectric is removed. State whether the capacitance, the energy stored in it, electric field, charge stored and the voltage will increase, decrease or remain constant.

An L-C-R series circuit with inductor of reactance is 25 Omega , reactance of capacitor is 50 Omega and resistance of 10 Omega is connected to an A.C. source. The impedance of the circuit will be …….

What is capacitive reactance? Write its unit.

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

The series combination of R (Omega) and capacitor C(F) is connected to an A.C. source of V volts and angular frequency omega . If the angular frequency is reduced to omega/3 , the current is found to be reduced to one-half without changing the value of the voltage. Determine the ratio of the capacitive reactance and the resistance.