A conducting rectangular loop of mass M, resistance R, and dimensions a × b is allowed to fall from rest through a uniform magnetic field which is perpendicular to the plane of the loop. The loop accelerates until it reaches a terminal speed (before the upper end enters the magnetic field). If a = 2.0 m, B = 6.0 T, R = 40 Ω, and M = 0.60 kg, what is the terminal speed?
A)1.6 m/s
B)20 m/s
C)2.2 m/s
D)26 m/s
E)5.3 m/s

Question

A conducting rectangular loop of mass M, resistance R, and dimensions a × b is allowed to fall from rest through a uniform magnetic field which is perpendicular to the plane of the loop. The loop accelerates until it reaches a terminal speed (before the upper end enters the magnetic field). If a = 2.0 m, B = 6.0 T, R = 40 Ω, and M = 0.60 kg, what is the terminal speed? 
A)1.6 m/s 
B)20 m/s 
C)2.2 m/s 
D)26 m/s 
E)5.3 m/s

Quizplus · Accepted Answer

The Answer of A conducting rectangular loop of mass M, resistance R, and dimensions a × b is allowed to fall from rest through a uniform magnetic field which is perpendicular to the plane of the loop. The loop accelerates until it reaches a terminal speed (before the upper end enters the magnetic field). If a = 2.0 m, B = 6.0 T, R = 40 Ω, and M = 0.60 kg, what is the terminal speed? 
A)1.6 m/s 
B)20 m/s 
C)2.2 m/s 
D)26 m/s 
E)5.3 m/s

A Conducting Rectangular Loop of Mass M, Resistance R, and Dimensions