Find the impedance of a LR circuit with R = `50 Omega` in series with an inductive reactance of `30 Omega`.

What is the value of impedance of LR circuit ?

Find the value of w ^( - 30)

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 ?

Find the value of omega^-30

Acoil of inductive reactance 31 Omega has a resistance of 8 Omega . It is placed in series with a condenser of capadtative reactance 25 Omega . The combination is connected to an a.c.source of 110 volt. The power factor of the circuit is

Find the value of: omega^-30

An A.C.source of r.m.s. value85V and frequency 50Hz is connected in series with an inductance of 2H and a resistance of 10 Omega . Find the maximum current in the circuit.

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 .

The total impedance of a circuit decreases when a capacitor is added in series with L and R. Explain why?

An alternating e.m.f. of peak value 110 V andfrequency 50 Hz is connected across LCR series circuit with R = 100 Omega , L = 10 mH, C = 25 muF . Calculate the inductive reactance, capacitive reactance and impedance.