An electric kettle rated as 1200 W at 220 V and a toaster rated at 1000 W at 220 V are both connected in parallel to a source of 220 V. If the fuse connected to the source blows when the current exceeds 9.0 A, can both appliances be used at the same time? illustrate your answer with calculations.

Given, P1=1200W, P2=1000W


Fuse rating=9A

We know, P=VI

Total current required,

I = P/V

= (P1+P2)/V

= (1200+1000)/220

= 10A

The fuse will get burnt if both the appliances are switched on together. So one should not use both the appliances at the same time.