At t = 0 the switch S is closed with the capacitor uncharged. If C = 30 ?F, ? = 50 V, and R = 10 k?, what is the potential difference across the capacitor when I = 2.0 mA?
A. 20 V
B. 15 V
C. 25 V
D. 30 V
E. 45 V
Answer: D
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A. A B. B C. C D. D E. E
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Fill in the blank(s) with the appropriate word(s).
As a balloon high in the atmosphere descends, it undergoes a decrease in
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