If 480 C pass through a 4.0-? resistor in 10 min, what is the potential difference across the resistor?

A. 3.6 V
B. 2.8 V
C. 2.4 V
D. 3.2 V
E. 5.0 V


Answer: D

Physics & Space Science

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A puddle of water (n = 1.33) is covered with a very thin layer of oil (n = 1.20). How thick is the oil in the region that strongly reflects light with a wavelength of 531 nm?

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Fill in the blank(s) with correct word

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