If a bulb of 60 W is connected across a source of 220 V, find the current drawn by it.

A bulb of 100 W is connected across a source of 200 V . Find the current drawn by it .

A bulb of 40 W is connected across a source of 220 V . Find the resistance of the bulb.

A bulb of 60 W is connected across a source of 240 V. Find the resistance of the bulb.

A 100W bulb is connected to an AC source of 220V , 50Hz . Then the current flowing through the bulb is

A resistance of 40 Omega is connected to an source of 220 v, 50 Hz. Find the (i) rms current (ii) maximum instantaneous current in resistor.

In an electric circuit, there is a capacitor of reactance 100Omega connected across teh source of 220V. Find the displacement current.

(a) Define Electric power. An electrial device of resistance R is connected across a source of voltage V and draws a current I. Derive an expression for power in terms of current and resistance. (b) Tow electric bulbs rated 100W , 220V and 60W, 220V are connected in parallel to an electric mains of 220V . Find the current draw by the bulbs form the mains.

A tube light of 60 V, 60 W rating is connected across an AC source of 100 V and 50 Hz frequency. Then,