2. Near San Francisco, where the vertically downward component of the earth’s magnetic field is 4.8 x 10-5 T, a car is traveling forward at 25 m/s. The width of the car is 2.0 m. (a) Find the emf induced between the two sides of the car. (b) Which side of the car is positive—the driver’s side or the passenger’s side?

Induced emf is found by

 

 

Using force law

 

The force will push positive charges toward the driver’s side!

 

the driver’s side is more Positive!

 

 

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This page last updated on June 23, 2018