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? 200 h 1 h 2,000 h 10 h 200 h 1 h 2,000 h 10 h ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 220 resistor dissipates 3 W. The voltage is 2.5 V 25.7 V 73.3 V 257 V 2.5 V 25.7 V 73.3 V 257 V ANSWER DOWNLOAD EXAMIANS APP
Energy and Power If it takes 400 ms to use 12,000 J of energy, the power is 30 W 3 W 30 kW 300 kW 30 W 3 W 30 kW 300 kW ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least 480 mW 15 mW 4.8 W 150 mW 480 mW 15 mW 4.8 W 150 mW 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 226 mW 22.6 mW 132 mW 13.2 mW 226 mW 22.6 mW 132 mW 13.2 mW ANSWER DOWNLOAD EXAMIANS APP
Energy and Power A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is 85.7% 8.57% 4.28% 42.85% 85.7% 8.57% 4.28% 42.85% ANSWER DOWNLOAD EXAMIANS APP
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