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 ?

utopizemtzzt

utopizemtzzt

Answered question

2023-02-16

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.

Answer & Explanation

Valeria Mcdowell

Valeria Mcdowell

Beginner2023-02-17Added 3 answers

As we know, P= VI
Total power when both are connected in parallel = 1200+1000 = 2200W
Current required for both of them to work = P/V = 2200/220 = 10A
The required current is greater than the fuse current value. Thus, the fuse will blow if both are use simultaneously. Hence, only one of them can be used at a time.

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