Problem: A 60-cm-long heating wire is connected to a 120 V outlet. If the wire dissipates 45 W, what are (a) the current in and (b) the resistance of the wire?

FREE Expert Solution

Electrical power,

P=VI=V2R=I2R

(a)

P = 45 W

V = 120 V

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Problem Details

A 60-cm-long heating wire is connected to a 120 V outlet. If the wire dissipates 45 W, what are (a) the current in and (b) the resistance of the wire?