Homework Help: PHYSICS 2

Posted by PLEASE HELP on Friday, February 8, 2013 at 8:03pm.

Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.8 x 10-5 T, a car is traveling forward at 17 m/s. The width of the car is 2.1 m. Find the emf induced between the two sides of the car. If positive charge accumulates on the driver's side, the enter the emf as a positive number. If negative charge accumulates on the driver's side, the enter the emf as a negative number

PHYSICS 2 - bobpursley, Friday, February 8, 2013 at 9:46pm
Are we to assume the car is traveling in the horizontal direction? In San Francisco?

Given that assumption (LOL), then the
voltage=velocity*B*length=6.8E-5*17*2.1
= = 0.0024276volt

Now the sign. Use the left hand rule for generators, see http://electriciantraining.tpub.com/14177/css/14177_38.htm I am tired now, but my middle finger points to the passenger side. Check that.

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