- #1

mike1234

- 5

- 0

## Homework Statement

A car with a vertical radio antenna 85cm long drives due east 25 m/s. The Earth's magnetic field at this location has a magnitude of 5.9 * 10-5 T and points northward, 72

__degrees below the horizontal__. a) Is the top or the bottom of the antenna at the higher potential? b) Find the induced emf between the ends of the antenna

## Homework Equations

E=Bvl

## The Attempt at a Solution

I started with E=Bvl where E=5.9 *10-5T *(cos 18 or 108 not sure)* 25m/s * .85m and get a value of 1.19mV with cos 18. however not sure should I use 108 instead but don't know the reasoning help someone