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December 8, 2016

Homework Help: Physics

Posted by Stefan on Monday, March 21, 2011 at 6:40pm.

A 2.40 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 15.1 m/s. The vertical component of Earth's magnetic field in this region is 40.0 ┬ÁT directed downward. Calculate the induced emf between the ends of the wire and determine which end is positive.

*I tried using the formula E=Blv where B is the magnetic field (4.0e-5 T), but the program says I'm off by a multiple of ten. I'm assuming I'm making a stupid mistake, but I can't figure out what it is!

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