# Problem: A conducting rod with length 0.0800 m slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform magnetic field that has magnitude B = 0.600 T and that is directed out of the page. The resistance of the circuit is a constant R = 12.0 Ω. What is the magnitude of the external force required to move the bar at a constant speed of 5.00 m/s?

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A conducting rod with length 0.0800 m slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform magnetic field that has magnitude B = 0.600 T and that is directed out of the page. The resistance of the circuit is a constant R = 12.0 Ω. What is the magnitude of the external force required to move the bar at a constant speed of 5.00 m/s? Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the !! Review: Faraday's + Lenz's Laws concept. If you need more !! Review: Faraday's + Lenz's Laws practice, you can also practice !! Review: Faraday's + Lenz's Laws practice problems.

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