Energy Engineering Question: Download Energy Engineering PDF

If you used 400 W of power for 30 h, you have used

A. 1.3 kWh
B. 13.3 kWh
C. 1.2 kWh
D. 12 kWh

Option D

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A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least A. 4.8 W B. 150 mW C. 15 mW D. 480 mW	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? A. 1 h B. 200 h C. 2,000 h D. 10 h