A metal rod of length 2.0 m is moved at 6.0 m/s in a direction perpendicular to its length. A 5.0 m T magnetic field is perpendicular to both the rod and its velocity. What is the potential difference between the ends of the rod?
A. 12 mV
B. 60 mV
C. 30 mV
D. 15 mV
E. 0
B. 60 mV
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When a wave source moves toward a receiver what does the receiver encounter?:
a) An increase in wave speed b) Nothing c) An decrease in wave frequency d) An increase in wave frequency
The three types of nuclear radiation are
A. gamma, beta, alpha. B. radiation, convection, conduction. C. protons, electrons, neutrons. D. electrical, strong nuclear, weak nuclear.
Two planes of charge with no thickness, A and B, are parallel and vertical. The electric field in the region between the two planes has magnitude 
. The electric field in the region to the left of A and the electric field in the region to the right of B may have the magnitudes
a.
0, 0.
b.
.
c.
,
d.
given in any answer above.
e.
given only in answer (a) or (b) above.
The direction of the force on a current-carrying wire in a magnetic field is described by which of the following?
A) parallel to the current only B) parallel to the magnetic field only C) perpendicular to the current only D) perpendicular to the magnetic field only E) perpendicular to both the current and the magnetic field