Can you solve problem #39 in the picture below? 39. Within the green dashed circle shown in Figure P31.39,the magnetic field changes with time according to theexpression B = 2.00t³ – 4.00t² + 0.800, where B isin teslas, t2.00 s, calculate (a) the magnitude and (b) the direc--is in seconds, and R = 2.50 cm. When t = point P, which is at a distance r = 5.00 cm from thecenter of the circular field region. (c) At what instant isthis force equal to zero?tion of the force exerted on an electron located atP2P11 XBinFigure P31.39 Problems 39 and 40.

Given,magnetic field in the region, B = 2.00 t3 -4.00 t2 + 0.800radius, R =2.50 cmt = 2.00 sr1 =…

39. Within the green dashed circle shown in Figure P31.39, the magnetic field changes with time according to the expression B = 2.00t³ – 4.00t² + 0.800, where B is in teslas, t is in seconds, and R = 2.50 cm. When t 2.00 s, calculate (a) the magnitude and (b) the direc- - |3D

39. Within the green dashed circle shown in Figure P31.39, the magnetic field changes with time according to the expression B = 2.00t³ – 4.00t² + 0.800, where B is in teslas, t is in seconds, and R = 2.50 cm. When t 2.00 s, calculate (a) the magnitude and (b) the direc- - |3D

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 71AP: How is the percentage change in the strength of the magnetic field across the face of the toroid...

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Question

Can you solve problem #39 in the picture below?

39. Within the green dashed circle shown in Figure P31.39,
the magnetic field changes with time according to the
expression B = 2.00t³ – 4.00t² + 0.800, where B is
in teslas, t
2.00 s, calculate (a) the magnitude and (b) the direc-
-
is in seconds, and R = 2.50 cm. When t =

point P, which is at a distance r = 5.00 cm from the
center of the circular field region. (c) At what instant is
this force equal to zero?
tion of the force exerted on an electron located at
P2
P1
1 X
Bin
Figure P31.39 Problems 39 and 40.

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