26 A small circular wire loop of radius a is located t the center of a much larger circular wire loop f radius b as shown above. The larger loop arries an alternating current I= I, cos wt, .
26 A small circular wire loop of radius a is located t the center of a much larger circular wire loop f radius b as shown above. The larger loop arries an alternating current I= I, cos wt, .
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Transcribed Image Text:26
81. A small circular wire loop of radius a is located
at the center of a much larger circular wire loop
of radius b as shown above. The larger loop
carries an alternating current I= I, cos wt,
where lo and w are constants. The magnetic
field generated by the current in thè large loop
induces in the small loop an emf that is
approximately equal to which of the following?
(Either use mks units and let Ho be the
permeability of free space, or use Gaussian units
and let Ho be 4T/ c².)
(A) (T.
(gle)o sin at
) (T) w sin ot
(P) ()
w cos wt
3.
(C)
cos wt
(E) (피aa) 응 sin ar
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