A 100V,50Hz A.C.supply is connected to a series L-R circuit.The current in the circuit is 5A and the average power dissipated is "100W" the value of R is :-

If the power dissipated in the circuit is 4W then the value of R is:

A resistor and a capacitor are connected to an ac supply of 200 V, 50 Hz, in series. The current in the circuit is 2A. If the power consumed in the circuit is 100 W then the resistance in the circuit is

An alternating e.m.f. of 200V,50Hz is applied to a series L-R circuit. If L=(0.4)/(pi) henry and R=30 Omega , then the impendance of the circuit and the current in the circuit will be

A coil is series with a 20muF capacitor across a 230V, 50Hz supply. The current taken by the circuit is 8A and the power consumed is 200W. Calculate the inductance of the coil if the current in the circuit is (a) leading (b) lagging

One 2 ohm resistor is connected in series with an inductor of reactance 1 Omega to a 5 V (rms ) A C source . Find the average power dissipated in the circuit .

A resistor and an inductor are connected to an ac supply of 120 V and 50 Hz, the current in the circuit is 3 A. If the power consumed in the circuit is 108 W, then the resistance in the circuit is

In an alternating series circuit,current is i=100sin(100t)A and voltage is V=100sin(100t+π/6)v .The average power dissipated in the ac circuit is