The figure shows the orientation of a flat circular loop consisting of 50 closely wrapped turns each carrying a current
I. The magnetic field in the region is directed in the positive
z direction and has a magnitude of 50 mT. The loop can turn about the
y axis. If
= 20,
R = 0.50 m, and
I = 12 A, what is the magnitude of the torque exerted on the loop?
a.
8.1 N m
b.
24 N m
c.
22 N m
d.
13 N m
e.
16 N m
Question 2The figure shows the orientation of a rectangular loop consisting of 80 closely wrapped turns each carrying a current
I. The magnetic field in the region is (
) mT. The loop can turn about the
y axis. If
= 30,
a = 0.40 m,
b = 0.30 m, and
I = 8.0 A, what is the magnitude of the torque exerted on the loop?
a.
2.5 N m
b.
1.5 N m
c.
3.1 N m
d.
2.7 N m
e.
0.34 N m
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