In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 fans of 80 W and 1 heater of 1 kW. The voltage of electric mains is 220 V. The minimum capacity fo the main fuse of the building will be :

Options

A. `8A`
B. `10 A`
C. `12 A`
D. `14 A`

Answer

C

Explanation

Total power consumed by electrical appliances in the building, `P_("total") = 2500 W`
Watt = Volt `xx` ampere
`rArr 2500 = Vxx I rArr 2500 = 2201`
`rArr I = (2500)/( 220) = 11.36 ~~12 A`
(Minimum capacity of main fuse)