1)A rectangular current loop is 14.9 cm long and 12 cm wide. The loop carries 3.
ID: 1331077 • Letter: 1
Question
1)A rectangular current loop is 14.9 cm long and 12 cm wide. The loop carries 3.4 amps in a magnetic field of 2.8 T. What is the torque on the loop if oriented at a 30° relative to the magnetic field?
2)A straight wire 4.9 meters long and diameter 6 mm is carrying a current of 20.3 amps in a perpendicular magnetic field of 6.1 T, what is the force on it?
3)A positively charged particle is traveling north at speed v. A magnetic field is directed up. What is the direction of the magnetic force on the particle?
4)In attempt to help the Royals' pitching staff, Kuehn has designed a coil to be fit into the infield which will generate a magnetic field of 18.6 T directed up. What is the magnitude of the force on an baseball if it has been charged to 2.9 mC and if its speed is 31.8 m/s in the magnetic field of the Earth? (Assume the baseball's path is perpendicular to the magnetic field)
EastExplanation / Answer
the torque on the loop is
T = NBIA sin theta
= 1(2.8 )(3.4 ) (0.149 m)(0.12 m) sin30
=0.0851088 N m
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