Question

An electric geyser rated 15000W, 220V is 220V line mains.
Calculate:
a) The electric current drawn by it.
b) Energy consumed by it in 50 hours.
c) Cost of energy consumed if cost of each unit is 6 rupees

Answer 1

P = 15000W
V = 220V

A) P = VI

15000 = 220 * I

15000 / 220 = I

I = 68.18 A

B). E = P * T

= 15000 * 50

= 750000 Watt Hr

C). 1 unit = 1Kw Hr

So cost of 750Kw Hr is

Cost of 1 unit is 6 Rs so cost of 750 unit is

750 * 6 = 4500 Rs


Thanks