Multiple Choice
A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the direction of motion are parallel to the rod.The force that must be applied by a person to keep the rod moving with constant velocity is:
A) 0
B) BLv
C) BLv/R
D) B2L2v/R
E) B2L2v2/R
Correct Answer:
Verified
Correct Answer:
Verified
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