If it takes 400 ms to use 12,000 J of energy, the power is 30 W 300 kW 30 kW 3 W TRUE ANSWER : ? YOUR ANSWER : ?
At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power? 252 kWh 1.286 kWh 535 kWh 12.85 kWh TRUE ANSWER : ? YOUR ANSWER : ?
How many watt-hours represent 65 W used for 18 h? 1,170 Wh 117,000 Wh 11,700 Wh 11.7 Wh TRUE ANSWER : ? YOUR ANSWER : ?
A 220 resistor dissipates 3 W. The voltage is 2.5 V 257 V 25.7 V 73.3 V TRUE ANSWER : ? YOUR ANSWER : ?
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is reversed shorted overheated open TRUE ANSWER : ? YOUR ANSWER : ?
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat? 33 neither resistor 330 both resistors TRUE ANSWER : ? YOUR ANSWER : ?
A 75 load uses 2 W of power. The output voltage of the power supply is approximately 120 V 6 V 12 V 1.2 V TRUE ANSWER : ? YOUR ANSWER : ?
A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume? 20.16 kWh 8.4 kWh 201.6 kWh 2.01 kWh TRUE ANSWER : ? YOUR ANSWER : ?
A half-watt is equal to how many milliwatts? 500 mW 5 mW 50 mW 5,000 mW TRUE ANSWER : ? YOUR ANSWER : ?