Problem 1: Your TV has a resistance of 10 ohms and a wall voltage of 120 V. How much current and power does it use?
Problem 2: Your dishwasher requires a current of 10 amps. The wall voltage is 120 V. What is the resistance of your dishwasher?
Problem 3: A power saw at the local hardware store boasts of having a 15-Amp motor. Determine its resistance when plugged into a 110-Volt outlet.
Problem 4: If an electric circuit is operated at 15 Amps and 120 V, how much electric power is available?
Problem 5: How many 500 W appliances could you operate at the same time on the circuit?
Your 1986 Refrigerator uses 160 W per hour. How much electricity does it use in a year?
A new 2017 Refrigerator uses 40 W per hour. How much electricity could you save with a new refrigerator? If the cost of electricity is $.09 kW-hr how much money could you save per year?
Problem 6: A stun gun or taser is designed to put out a few seconds worth of electric pulses that impress a voltage of about 1200 V across the human body. This results in an average current of approximately .003A into a human body. Using these figures, estimate the resistance of the human body.