A metal bar rotates counterclockwise in a magnetic field as shown. Does the bar have a motional emf? If not, why not? If so, is the outerend of the bar positive or negative? Explain.
Homework Answers
Yes,
There is a motion emf with the outer end of the bar negative and the pivot positive . As the bar rotates the free electrons in it rotate the there fore experience a magnetic force towards the outer end of the bar.
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A metal bar rotates counterclockwise in a magnetic
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two conducting frictionless horizontal rails, a resistor and some
conducting wire along the left side and a conducting bar on the
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initially at rest but at time zero a force is applied to the bar
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