ut 224.2015 odr C secure h ttps wwww.webassign net/web/Student/Assignment Respon

Question

ut 224.2015 odr C secure h ttps wwww.webassign net/web/Student/Assignment Responses/last?depa 5967595 o8 as points A magnetic field passes through a stationary wire loop, and ts magnitude changes in time according to the graph in the drawing. The direction of the field remains oonstant, however There are three equal time intervals indicated in the g o-3 6.0 s, and 6.0-gos. The loop consists of turns of wire and has an area of 0.24 m2. The magnetic field is oriented parallel to the normal to the loop. or purposes of this problem, this means that "0" in Equation 22.2. (a) For each interval, determine theinduced emf. Select select b) The wire has a resistance 0.50 n. Determine the induced current for the frst and third intervals. Answer save Progress -a points culo 22PO20 medical technique for producing pictures of the interior of the body. The patient is placed within a strong magnetic field. One safety concern is what would happen to the positively and negatively charged particles in the body fluids if an equipment failure caused the magnetic field to be shut off suddenly. An induced emf could 10:18 o

Explanation / Answer

(A) induced emf = rate of change of magnetic flux

= d ( N B A ) / dt

= N A dB/dt

e1 = (48 x 0.24) (0.40 - 0) / 3

e1 = 1.54 Volt

from 3s to 6s, dB/dt = 0

e2 = 0

from 6s to 9s

e3 = (48 x 0.24) (0.20 - 0.40) / 3

e3 = - 0.768 Volt

(B) I = e / R

I1 = 1.54 / 0.50 = 3.07 A

I3 = - 0.768 / 0.50 = 1.54 A

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