Question

An electric kettle of 500W is used to heat water every day for 2hours . Calculate the no.of units of electrical energy consumed by it in10 days

Answer 1

we know that
power:- Energy consumed per unit second or the rate at which the work is done is called power

P = W/t
P = 500W = 0.5KW
Time = 2 × 10 = 20h

P = W/t
W = Pt
W = 0.5 × 20
W = 10KWh

We know that 1000W = 1KW = 1unit

therefore 10×1 = 10unit of energy is consumed by electric kettle

Answer 2

Explanation:

her is the answer