An a.c. source of 220 V, 50 Hz is connected to a series combination of `50 Omega` resistor, 20 micro farad capacitor and 10 mH inductor respectively. Calculate the current through the combination.

An a.c. source of 220 V 50 Hz is connected in series with a 50 Omega resistance 150 mu F capacitors and 0.5 H inductor in series. Calculate the current through the combination.

An A.C. Source of 250 V, 50 Hz is connected to a circuit consisting of an electric lamp rated 100 W, 50 V and a capacitor in series. What should be value of the capacitance of the capacitor to make the lamp work at the rated value?

A source of alternating emf of 220 V-50 Hz is connected in series with a resitance of 200 Omega an inductance of 100 mH and a capacitance of 30 mu F does the current lead or lag the voltage and by what angle ?

A battery of 12 V is connected to a series combination of resistors 3Omega , 4 Omega, 5 Omega and 12 Omega . How much current would flow through the 12 W resistor ?

A battery of 9V is connected in series with resistors of 0.2 Omega,3Omega,0.4Omega and 12Omega respectively. How much current would flow through the 12 Omega resistors ?

A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is the rms value of the current in the circuit?

A resistor and a capacitor are connected in series to a 50 Hz ac source . The voltage (rms ) acrooss the resistor and capacitor are 151 V and 160.3 V respectively Calculate the rms voltage of the source .Also find the capactive reactance adn impedance of the circuit , if the circuit is 0.755 A .

An inductance coil and capacitor are connected in series and the current through the combination is maximum for ac of freqnecy f . If they are connected in parallel, at the frequency at which the current through the combination is minimum will be