An electric lamp is connected in series with a capacitor and an AC source is glowing with a certain brightness. How does the brightness of the lamp change on increasing the capacitance?

A 25 muF capacitor, a 0.10 H inductor and a 25 Omega resistor are connected in series with a AC source whose emf is given by e = 310 sin 314 t (volt). What is the frequency, reactance, impedance, current and phase angle of the circuit?

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

Find the current in a circuit consisting of a coil and a capacitor in series with an A.C. source of 110 V (r.m.s.), 60 Hz. The inductance of the coil is 0.80 H and its resistance is 50 Omega . The capacitance of the capacitor is 8 muF .

Find the impedance of the circuit containing an inductance of 2 henry, a capacitance of 6 mu F and a resistance of 100 Omega connected in series with an a.c. source of frequency 50 Hz. By what angle will the current lead or lag the applied e.m.f. in the circuit ?

A capacitor of 20 muF is connected in series with a 25 Omega resistance to peak e.m.f. 240 V, 50 Hz A.C. Calculate:-the capacitive reactance of the coil

An a.c. e.m.f. of peak value 240 V and frequency 50 Hz is connected to a circuit with R = 12 Omega , L = 2.5 H and a capacitor all in series. Find the capacitance for the current in the circuit to be maximum. Find the maximum current.

A capacitor of 25 muF , inductor of 0.1 H and resistor of resistance 25 Omega are connected in series with an A.C. source of e.m.f., e = 310 sin (314 t) volt. What is the:- impedance and current of the circuit

A capacitor of 25 mu F ,inductor of 0.1 H and resistor of resistance 25 Omega are connected in series with an A.C. source of an e.m.f. e =310 sin (314 t) volt. What is the expression for instantaneous value of current ?

Net capacitance of three identical capacitors in series is 1muF . What will be their net capacitance if connected in parallel? Find the ratio of energy stored in the two configurations, if they are both connected to the same source.