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What is the total cost of using an 860 W air conditioner for 24 h at a rate of 9¢ per kilowatthour?

What is the cost of using a 24 W radio for 1 h at a rate of 9¢ per kilowatthour?

How many joules of energy will a 10 Ohm resistor connected across a 15 V battery dissipate in 1 min?

What is the efficiency of a motor that has an output of 1.5 hp with an input of 1550 W?

If a resistor uses 420 J of energy for 7 min, what is the power to the resistor?

The internal resistance of a dc generator is 0.4 Ohms. Determine the loss in terminal voltage across this internal resistance if the current is 20 A.

What is the internal resistance of a washing machine that is rated at 6.3 A at 120 V?

A clock has an internal resistance of 10 kOhms and is plugged into a 120 V wall outlet. What is the current drawn by the clock?