A coil of wire consists of 20 turns, or loops, each of which has an area of 1.5 x 10-3
m 2. A magnetic field is perpendicular to the surface of each loop at all times, so that Ø = Øo = 0°. At time to = 0s,
the magnitude of the field at the location of the coil is Bo = 0.050 T. At a later time t = 0.10s, the magnitude of the
field at the coil has increased to B = 0.060 T.
a. Find the average emf induced in the coil during this time.
b. What would be the value of the average induced emf if the magnitude of the magnetic field decreased
from 0.060 T to 0.050 T in 0.10s?
3 answers
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a. .18
Kinger
1 answer