A simple series circuit consists of just a 3.4-µF capacitor and an 80-mH inductor, with no appreciable resistance. At t = 0 the capacitor has charge 5.4 µC and the current in the inductor is zero
(a) How long after t = 0 will the current in the circuit be maximum?
(b) What will be this maximum current?
(a) 0.82 ms (b) 10 mA
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Newton's second law states that if an unbalanced force acts on an object, it will move at constant velocity
a. true b. false
A general condition that two waves undergo constructive interference is that
A. their phase difference is zero.
B. their phase difference is
C. their phase difference is
D. their phase difference is an even integral multiple of
E. their phase difference is an odd integral multiple of
Lenz's Law: As shown in the figure, two solenoids are in line. The switch S, initially closed, is suddenly opened. Just after opening S, what is the polarity of the induced emf in terminals X and Y?
A. X and Y are at the same potential. B. X is positive and Y is negative. C. Y is positive and X is negative.
It takes 10 J of work to push a charge initially at rest into an electric field. If the charge is then released, it flies back to its initial position with a kinetic energy of
A) zero. B) 5 J. C) 10 J. D) more than 10 J. E) need more information.