1. The problem statement, all variables and given/known data An automobile with a vertical radio antenna of length 75 cm travels at 80 km/h eastward. The Earth’s magnetic field has magnitude of 7x10-5 T and is directed 52o downward with respect to due North. What EMF is generated between two ends of the antenna? Comment on the polarity of EMF as well. 2. Relevant equations ε = Blv To find V in m/s: 80km/h X 1000m/km X 1h/60m X 1m/60s = 22.22 m/s l = 0.75m θ = 52° 3. The attempt at a solution 7x10-5 X .75 X 22.22 X sin(52°) = 9.1925 X 10-4 V That make sense to you guys for part A? As for Part B, the polarity, I don't really know how to determine. I know I will have to factor the direction of the car being towards the east, and the direction of the magnetic field, but I do not understand how one will interact with the other. Any hint in the right direction would be appreciated for this part!