Question

A steam iron draws 5.0 A when connected to
a potential difference of 122 V.
a) What is the power rating of this iron?
Answer in units of W

b) How much energy is produced in 15.0 min?
Answer in units of J

Please help me?

Answer 1

a. P = V*I = 122 * 5 = 610 W.

b. Energy=P*T = 610W * 900s=549,000 J.