A loop of area 0.250 m2 is in a uniform 0.0200-T magnetic field. If the flux through the loop is 3.21 × 10^–3 T•m2, what angle does the normal to the plane of the loop make with the direction of the magnetic field?
a. 40.0°
c. 50.0°
b. 37.5°
d. This is not possible.
C
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A bar magnet is falling through a loop of wire with constant velocity. The north pole enters first. As the south pole leaves the loop of wire, the induced current (as viewed from above) will be
a. clockwise. b. counterclockwise. c. zero. d. along the length of the magnet.
What is the moderator of a nuclear reactor?
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Which property does color best represent?
a. velocity b. thermal energy c. temperature d. heat
Which of the following is TRUE?
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