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Motional EMF in an Open Conductor

AB and CD are...

Question

AB and CD are smooth, parallel, horizontal rails on which a conductor T can slide. A cell, E, drives current i through the rails and T

A

The current in the rails will set up a magnetic field over T

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B

T will experience a force to the right

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C

T will experience a force to the left

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D

T will not experience any force

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Solution

The correct options are
A The current in the rails will set up a magnetic field over T
B T will experience a force to the right
Currents in AB and CD causes the same magnetic field in upward direction on T. Also, the direction of currents in AB and CD are opposite to each other hence, T will experience a force to the right.

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