Physics Current Electricity Level: High School

A steam iron draws 4.0 A when connected to a potential difference of 116V.

a) What is the poer rating of this iron? In units of W.

b) How much energy is produced in 20 min? In units of J.

c) How much does it cost to run the iron for 20 min at $ 0.010/kW-h? Answer in dollars.