Question 111Electricity & Electronics - Assistant Engineer

70% to pass

Two 100 watt light bulbs rated at 100 volts are connected in parallel across a 100 volt power supply. What will be the total power consumed by the two bulbs?

A50 watts
B66.7 watts
C100 watts
D200 watts
AI Explanation

The correct answer is C) 100 watts. When two identical 100 watt, 100 volt light bulbs are connected in parallel across a 100 volt power supply, the total power consumed will be the sum of the power consumed by each bulb. Since the bulbs are identical and connected in parallel, each bulb will consume 100 watts of power. Therefore, the total power consumed by the two bulbs is 100 watts + 100 watts = 200 watts. The other options are incorrect because: A) 50 watts is only half the total power consumed. B) 66.7 watts is an incorrect calculation. D) 200 watts is the correct total power consumed.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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