Question

24.Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric
ou 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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Answer 1

I = P / V

i1 = 40 / 220

= 0.09 A

i2 = 60 / 220

= 0.27 A

I total = i1+i2

= 0.09 + 0.27

= 0.36

energy = vit

= 220 x 0.36 x 60 x 60

= 102643 j/ sec

sorry about diagram after making it I will send u

Answer 2

Hope it's help you..........