Question

A portable heater is plugged into a 120-V outlet and draws a current of 8.0 A for 10.0 min. Calculate each of the following: 

a) the quantity of electric charge that flows through the heater 

b) the energy consumed by the heater 

c) the power dissipated by the heater

Answer 1

(a) $Q=It=4800\text{ C}.$

(b) $E=IVt=576\text{ kJ}.$

(c) $P=IV=960\text{ W}.$