Jim and Jenny just moved into a rental house. Early Sunday morning, Jim decides

Question

Jim and Jenny just moved into a rental house. Early Sunday morning, Jim decides to surprise Jenny and cook breakfast for her. He starts cooking bacon in the electric frying pan (1000-watt) while he perks the coffee (600-watt). Jim decides to make some toast (700-watt) while he waits for the bacon and coffee to finish cooking. Just before he starts the toaster, Jim notices that the kitchen circuit is protected by a 20 amp fuse. He looks around and can't find any spare fuses. Should Jim start the toast now, or wait until the coffee and bacon are

Explanation / Answer

let us take V = 220 V

CURRENT = POWER / VOLTAGE

now, when coffee and bacon are there

A1 = (1000+600) / 220 = 7.27 A

and when toaster is also being made ...

A2 = (1000+600+700) / 220 = 10.46 A

it is exceeding 10A.. so he has to wait. it to complete

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