Question

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.

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Answer 1

Answer:

Explanation:

Given, P1=1200W, P2=1000W

V=220V

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.