Power: A 200-? resistor is rated at 1/4 W. What is the maximum voltage that can safely be connected across it?
A. 0.71 V
B. 7.1 V
C. 50 V
D. 0.25 V
Answer: B
Physics & Space Science
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A light bulb, sold as long-lasting, is rated 95 W at 145 V. The "increased" lifetime comes from using it at 110 V. Assuming negligible change in resistance at the different voltage, what is its power consumption at 110 V?
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