1.

Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric supply at 220 V.(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.

Answer» Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric supply at 220 V.

(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.


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