Energy and Power A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is 4.28% 85.7% 42.85% 8.57% 4.28% 85.7% 42.85% 8.57% ANSWER DOWNLOAD EXAMIANS APP
Energy and Power If it takes 400 ms to use 12,000 J of energy, the power is 3 W 300 kW 30 W 30 kW 3 W 300 kW 30 W 30 kW ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat? 330 neither resistor 33 both resistors 330 neither resistor 33 both resistors ANSWER DOWNLOAD EXAMIANS APP
Energy and Power How many watt-hours represent 65 W used for 18 h? 1,170 Wh 117,000 Wh 11,700 Wh 11.7 Wh 1,170 Wh 117,000 Wh 11,700 Wh 11.7 Wh ANSWER DOWNLOAD EXAMIANS APP
Energy and Power In 40 kW, there are 5,000 W 40,000 W 0.4 mW 400 W 5,000 W 40,000 W 0.4 mW 400 W ANSWER DOWNLOAD EXAMIANS APP
Energy and Power If you used 400 W of power for 30 h, you have used 1.3 kWh 13.3 kWh 1.2 kWh 12 kWh 1.3 kWh 13.3 kWh 1.2 kWh 12 kWh ANSWER DOWNLOAD EXAMIANS APP
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