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% 42.85% 8.57% 85.7% 4.28% 42.85% 8.57% 85.7% ANSWER DOWNLOAD EXAMIANS APP
Energy and Power For 12 V and 40 mA, the power is 480,000 µW 480 mW All of these 0.480 W 480,000 µW 480 mW All of these 0.480 W ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is 58 Ah 0.58 Ah 21 Ah 2.1 Ah 58 Ah 0.58 Ah 21 Ah 2.1 Ah ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 6 V battery is connected to a 300 load. Under these conditions, it is rated at 40 Ah. How long can it supply current to the load? 10 h 1 h 2,000 h 200 h 10 h 1 h 2,000 h 200 h ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 15 V source is connected across a 12 resistor. How much energy is used in three minutes? 938 Wh 0.938 Wh 5.6 Wh 56.25 Wh 938 Wh 0.938 Wh 5.6 Wh 56.25 Wh 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? 33 both resistors 330 neither resistor 33 both resistors 330 neither resistor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS