The figure shows a 17cm-long metal rod pulled along two frictionless, conducting

Question

The figure shows a 17cm-long metal rod pulled along two frictionless, conducting rails at a constant speed of 4.0m/s. The rails have negligible resistance, but the rod has a resistance of 0.75?

What is the current induced in the rod?

I = ______ A

What is the magnitude of the force is required to keep the rod moving at a constant speed?

F= _______N

And what is the direction of this force?

To the right

To the left

Image :http://session.masteringphysics.com/problemAsset/1169588/2/jfk.Figure.25.P04.jpg

Explanation / Answer

resistence formula can be used, force formula can be used

figure is not clear

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