Reactance: Consider a capacitor connected across the ac source. As the capacitance is increased, the current through the capacitor will
A. increase.
B. remain constant.
C. decrease.
Answer: A
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Charge of uniform linear density 6.0 nC/m is distributed along the x axis from x = 0 to x = +3 m. Which of the following integrals is correct for the electric potential (relative to zero at infinity) at the point y = +4 m on the y axis?
A.
B.
C.
D.
E.
The internal energy of a substance can be increased by
a. doing work on it b. letting it do work c. adding heat to it d. extracting heat from it e. none of the above
Which of the following nuclear reactions is forbidden?
A. 
B. 
C. 
D. 
Energy Levels: The energy difference between adjacent orbit radii in a hydrogen atom
A. increases with increasing values of n. B. decreases with increasing values of n. C. remains constant for all values of n. D. varies randomly with increasing values of n.