Motional EMF Video Lessons

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Problem: A metal bar is moving toward the bottom of the page, as shown in the sketch. The bar is in a uniform magnetic field B that is directed into the page. Which end of the bar,  a or b, is at higher potential? (a) a (b) b (c) a and b are at the same potential

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Problem Details

A metal bar is moving toward the bottom of the page, as shown in the sketch. The bar is in a uniform magnetic field B that is directed into the page. Which end of the bar,  a or b, is at higher potential?

(a) a

(b) b

(c) a and b are at the same potential

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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 Motional EMF concept. You can view video lessons to learn Motional EMF. Or if you need more Motional EMF practice, you can also practice Motional EMF practice problems.

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Our expert Physics tutor, Juan took 1 minute and 54 seconds to solve this problem. You can follow their steps in the video explanation above.

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Based on our data, we think this problem is relevant for Professor Ford's class at TAMU.