Homework Help: Physics

Posted by Anonymous on Monday, February 6, 2012 at 12:03pm.

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?

Physics - Henry, Tuesday, February 7, 2012 at 6:37pm
a. P = V*I = 122 * 5 = 610 W.

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

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