A rigid wire with resistance of 0.111 Ω forms a nearly complete circular loop (see figure below). A 8.38 V battery is connected between points a and b. Find the torque exerted on the wire by a magnetic field of magnitude 0.400 T, directed to the right, in the plane of the loop.
Current, I = V/R = 8.38/0.111 = 75.5 A
Torque, T = NBIA sin(theta)
T = 1 x 0.4 x 75.5 x pi x 0.2^2
T = 3.79 Nm
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A rigid wire with resistance of 0.111 Ω forms a nearly complete circular loop (see figure...
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