Question

Three appliances are connected in parallel to the same source which provides a voltage of 220 V. A fuse connected to the source will blow if the current from the source exceeds 10 A. If the the three appliances are rated at 60 W, 500 W and 1200 W at 220 V, will the fuse blow ?

Answer 1

As we know,
P = VI
Total power = 60+500+1200 = 1760W

I = 1760 / 220
I = 8A

The required current is less than 10A. Hence the fuse will not blow off.