Problem 12-42 Electric power

A 1.10kW hairdryer and a 60.0W light bulb are turned on in the same 120VAC parallel circuit. Assuming three significant digits in the given voltage, determine the current in the (a) hairdryer (b) light bulb (c) fuse in the circuit. (d) If the fuse is rated at 15A, will it blow?

[Ans. (a) 9.17A   (b) 0.500A   (c) 9.67A  (d) no]


Let's first make a simple drawing of the circuit. Which is correct?

Two possible circuit diagrams; A, B.

(A)

(B)