1) A 1.2-kW electric heater has a resistance of 6-ohm. How much current does it draw?
2) How many volts must be applied to a 3- ohm resistor to result in a power dissipation of 752W?
3) A 0.27-k ohm resistor is rated 2W. Compute the maximum voltage that can be applied and the maximum current that it can carry without exceeding its rating.