Two lamps, one rated `100 W` at `220 V`, and the other `60 W` at `220 V`, are connected in parallel to the electric mains supply. What current is drawn from the line if the supply voltage is `220 V` ?

(a) Write Joule's law of heating. (b) The lamps, one rated 100 W, 220 V , and the other 60 W, 220 W V, are connected parallel to electric mains supply. Find the current drawn two bulbs from the line,if the supply voltage is 220 V.

A piece of wire of resistance R is redrawn by pulling it until its length is doubled. Compare the new resistance with the original value. Two lamps , one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to a 220 V supply. What is the current drawn from the supply line ?

Two bulbs, one rated 100 W at 220 V and other 200 W at 220 V are connected In series In parallel to the electric main supply of 220 V. Find the current drawn in each case.

Two lamps, one rated 40 W at 220 V and the other 100 W at 220 V, are connected in parallel to the electric supply at 220V. (a) Draw a circuit diagram to show the connections. (b) Calculate the current drawn from the electric supply. (c) Calculate the total energy consumed by the two lamps together when they operate for one hour.

Two lamps, one rated 40W at 220V and the other 60W at 220 V, are connected in parallel to the electric supply at 220V. (a) Draw a circuit diagram to show the connections. (b) Calculate the current drawn from the electric supply. (c) Calculate the total energy consumed by the two lamps together when they operate for one hour.