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A magnetic field directed into the page changes with time according to
B = 0.033 or? + 1.40, where B is in teslas and t is in seconds. The field has a circular
cross section of radius R = 2.50 cm (see figure below).
* x x x
* x x xx x
* x x K*
x x x x *
x x x x x x
x x x x x
B
Din
(a) When t= 1.50 s and r, = 0.020 o m, what is the magnitude of the electric
field at point p,?
N/C

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