Question

a television set having apower rating of 120w and electric lawnmower of power rating 1kw are both connected to a 250v supply if 3A 5A and 10A fuses are available state which is the most appropriate for each appliance​

Answer 1

Television

Power = 120 w

p.d = 240 v

I = p / v

I = 120 / 240 = 0.5

Fuse can be used 3A

lawnmower

Power = 1000w

p.d = 240 v

I = 1000/ 240 = 4.16

Fuse can be used = 5A