1. Calculate the power consumption of a 12-A heater operating at 120V.

2. A car's headlight consumes 55W when on low beam and 68W when on high beam.Find the current that flows on low beam if V=12Volts.

3.A car's headlight consumes55W when on low beam and68W when on high beam. Find the current that flows on high beam if V=12Volts.

4. A car's headlight consumes55W when on low beam and68W when on high beam. Find the resistance when the headlight is on high beam.

5. A certain electric motor draws a current of 10A when connected to 120V. What is the motor's power consumption?

6. A certain electric motor draws a current of10A when connected to120V. How much energy does it use during 4h of operation?Express your answer in kilowatt-hours.

7. The resistance of an electric heater is 10Ohms when connected to a 120 V.How much energy does it use during 45minutes of operation?Express your answer in Joules.

8. Your cellphone typically consumes 400mWof power while used t text. If the phone is operated using a battery with voltage of 3.6 V, what is the current flowing through the cell phone circuitry under these circumstances?