Question

Your toaster oven and coffeemaker each dissipate 1100 W of power. You have a 114 V line in your kitchen. For what current must the circuit breaker be rated for you to operate both of these appliances at the same time

Answer 1

The circuit breaker must be rated 9.6 A for you to operate both of these appliances at the same time.

The power dissipated is given by the formula;

P = IV

Where;

P = power dissipated

I = current

V = voltage

From the question we have the following information;

P = 1100 W

V =  114 V

I = ?

Substituting values and making current the subject of the formula;

I = P/V

I =  1100 W/ 114 V

I = 9.6 A

The circuit breaker must be rated 9.6 A for you to operate both of these appliances at the same time.

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