The figure shows a 17cm-long metal rod pulled along two frictionless, conducting
ID: 1285553 • Letter: T
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