A rod with resistance R lies across frictionless conducting rails in a constant uniform magnetic field B, pointing into the paper as shown below. Assume the rails have negligible resistance. The magnitude of the force that must be applied by a person to pull the rod to the right at constant speed vis: ←→ L X BLv(x/R) B²L²v(x/R) B²L²V/R BLv No force (zero Newton)
A rod with resistance R lies across frictionless conducting rails in a constant uniform magnetic field B, pointing into the paper as shown below. Assume the rails have negligible resistance. The magnitude of the force that must be applied by a person to pull the rod to the right at constant speed vis: ←→ L X BLv(x/R) B²L²v(x/R) B²L²V/R BLv No force (zero Newton)
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Transcribed Image Text:A rod with resistance R lies across frictionless conducting rails in a constant uniform
magnetic field B, pointing into the paper as shown below. Assume the rails have
negligible resistance. The magnitude of the force that must be applied by a person to
pull the rod to the right at constant speed vis:
- x
>
BLv(x/R)
B²L²v(x/R)
B²L² v/R
BLv
No force (zero Newton)
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