Question

what are the reasons for overloading in electric circuit
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Answer 1

Answer:

High voltage. Low output. It is the main reason.

Answer 2

Answer:

Overuse of extension cords and multiple plug adapters on the same circuit are typical causes of an electrical overload -- by placing too much current demand on the circuit. Running too many blow dryers and curling irons at once is a typical problem when homes have a single circuit serving two bathrooms.