Energy in Capacitors: When a 12.0-V battery causes 2.00 ?C of charge to flow onto the plates of an air-filled capacitor, how much work did the battery do?
A. 24.0 ?J
B. 12.0 ?J
C. 144 ?J
D. 576 J
Answer: B
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Fill in the blank(s) with correct word
Two resistors of values 6.0 and 14.0 ? are connected in parallel. This combination in turn is hooked in series with a 2.0-? resistor. What is the overall resistance of this combination?
a. 1.4 ? b. 11 ? c. 6.2 ? d. 22 ? e. 4.2 ?
What is the power of a lens that has a focal length of -40 cm and a width of 2.0 cm?
A) -2.5 diopters B) -0.50 diopters C) +2.5 diopters D) +4.0 diopters E) -50 diopters
Characteristic K X-rays are the result of:
a. inner electron transitions. c. nuclear electron states. b. outer electron transitions. d. buckytubes.