A conductor wire consists of a circular loop of radius r and two straight, long sections, as shown in the figure. The wire lies in the plane of the paper and carries a current I. I I (a) What is the magnitude of the magnetic field at the center of the loop? 2r O Hel (I-1) 4r O Hol 2r 2r O Hol 2mr (b) What is the direction of the magnetic field at the center of the Joop?
A conductor wire consists of a circular loop of radius r and two straight, long sections, as shown in the figure. The wire lies in the plane of the paper and carries a current I. I I (a) What is the magnitude of the magnetic field at the center of the loop? 2r O Hel (I-1) 4r O Hol 2r 2r O Hol 2mr (b) What is the direction of the magnetic field at the center of the Joop?
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Transcribed Image Text:A conductor wire consists of a circular loop of radius r and two straight, long sections, as shown in the figure. The wire lies in the plane of the paper and
carries a current I.
I
I
(a) What is the magnitude of the magnetic field at the center of the loop?
O Hol (+1)
2r
TT
O Hol (T-1)
4ar
O HoI
2r
O Hol (-1)
2r
T
2tr
(b) What is the direction of the magnetic field at the center of the loop?
Out of page
O Rigth
O Into the page
Transcribed Image Text:(b) What is the direction of the magnetic field at the center of the loop?
O Out of page
O Rigth
O Into the page
O Up
O Left.
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