An ampere, A, is equivalent to a
A. V/m.
B. V·C.
C. C/s.
D. C·s.
E. N/V.
B. V·C.
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When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is
a. zero. b. at its maximum value. c. equal to the current in a resistive circuit in parallel with the capacitor circuit. d. greater than the current in a resistor that is farther from the battery than the capacitor. e. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.
One situation in which the law of conservation of energy is violated is
A) near black holes. B) for very fast-moving objects. C) for atomic-sized objects. D) All of the above. E) nonsense--no violations of this law have ever been observed.
Pressure in a fluid decreases with depth
Indicate whether the statement is true or false
Two pieces of optically flat glass (n = 1.50 ) touch at one edge and a separated by a thin stretched fiber at the opposite edge. Light of wavelength 500 nm is shone from above and 100 dark fringes are counted. How thick is the fiber?
A) 13 ?m B) 100 ?m C) 5 ?m D) 50 ?m E) 25 ?m