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The breaker box in your house divides up the house into different parallel circuits. All of...

The breaker box in your house divides up the house into different parallel circuits. All of the items on a given circuit are in parallel with each other, i.e. they share the same voltage but each pull different currents. If a circuit breaker can only handle 10 A, would you be able to run a microwave (3 A), hair dryer (4 A), and toaster (4 A) at the same time?
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Answer #1

NO,

Since they draw currents microwave ( ), hair dryer () and toaster () each,

Total current through circuit breaker will be , which is more than the maximum load of current for the circuit breaker.

Hence the circuit breaker cannot handle these loads.

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