All of the electrical outlets in a room are connected in a single parallel circu

Question

All of the electrical outlets in a room are connected in a single parallel circuit. The circuit is equipped with a 20 A fuse, and the voltage is

V = 120 V.

(a) What is the maximum total power that can be supplied by the outlets without blowing the fuse?


(b) How many 1,900-W appliances can be plugged into the sockets without blowing the fuse? (Enter only a number)

All of the electrical outlets in a room are connected in a single parallel circuit. The circuit is equipped with a 20 A fuse, and the voltage is V = 120 V. (a) What is the maximum total power that can be supplied by the outlets without blowing the fuse? (b) How many 1,900-W appliances can be plugged into the sockets without blowing the fuse? (Enter only a number)

Explanation / Answer

A) maximum electric power P = V I = 120 x 20 = 2400 W

B) number of appliances n = P / p = 2400 / 1900 = 1

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