PhysVid 4

33.68 A conducting bar of length l and mass m rests at the left end of two frictionless rails of length d. A uniform magnetic field of strength B points upward. a) In which direction, into or out of the page, will a current through the conducting bar cause the bar to experience a force to the right? b) Find an expression for the bar's speed as it leaves the rails on the right end.

[charleswetzel]

Great work on the explanation, very straight forward and clear. You might work on the sign off a little, but other than that, please do keep making these!

[allyb]

Thank you so much. This helped a lot :)

[mrnarason]

thanks, also you forgot parentheses on the acceleration expression.