Energy and Power A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is 42.85% 8.57% 4.28% 85.7% 42.85% 8.57% 4.28% 85.7% 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? 2,000 h 10 h 1 h 200 h 2,000 h 10 h 1 h 200 h ANSWER DOWNLOAD EXAMIANS APP
Energy and Power If you used 400 W of power for 30 h, you have used 1.3 kWh 12 kWh 1.2 kWh 13.3 kWh 1.3 kWh 12 kWh 1.2 kWh 13.3 kWh ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 220 resistor dissipates 3 W. The voltage is 2.5 V 257 V 25.7 V 73.3 V 2.5 V 257 V 25.7 V 73.3 V ANSWER DOWNLOAD EXAMIANS APP
Energy and Power If it takes 400 ms to use 12,000 J of energy, the power is 30 kW 300 kW 3 W 30 W 30 kW 300 kW 3 W 30 W ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is 13.2 mW 226 mW 132 mW 22.6 mW 13.2 mW 226 mW 132 mW 22.6 mW ANSWER DOWNLOAD EXAMIANS APP
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