An ac generator has 80 rectangular loops on its armature. Each loop is 12 cm long and 8 cm wide. The armature rotates at 1200 rpm about an axis parallel to the long side
If the loop rotates in a uniform magnetic field of 0.30 T, which is perpendicular to the axis of rotation, what will be the maximum output voltage of this generator?
A)
20 V
B)
27 V
C)
29 V
D)
33 V
E)
35 V
C
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A) astronomical unit B) light-year C) radius of curvature D) focal length
A sealed container holds 0.020 moles of nitrogen (N2 ) gas, at a pressure of 1.5 atmospheres and a temperature of 290 K. The atomic mass of nitrogen is 14.0 g/mol
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Consider a wire in a magnetic field, as shown in the following figure, with a current flowing through it. What will happen to the wire?
a.
The wire will be forced toward the north pole.
b.
The wire will be forced perpendicular to the plane of the magnetic field.
c.
The current will cease flowing.
d.
Nothing will happen.