How to calculate the amount of electricity being produced.

AI Thread Summary
To calculate the electricity produced by a moving car's hood emblem, one must consider the emblem's design, specifically treating each triangular hole as a separate loop. The area of these loops, the speed of the car, and the Earth's magnetic field strength, approximately 50 microteslas, are crucial factors. Electricity generation occurs only when there is a change in magnetic flux through the loops, which may require turning the car. The process involves measuring the circumference of the emblem and substituting values for the spokes. Understanding these principles can make the calculation both fun and educational.
JDLTX
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Back in my physics class in high school, we had a homework problem that stated a car had a circular hood emblem (pretty much a Mercedes-Benz hood star) and that when the car was in motion it would produce electricity due to magnetic waves going through it while it was in motion.

I now own a Mercedes and would like to try and actually figure out how much electricity is produced when I drive at a certain velocity, I'm in no way expecting to find out it produces as much as a nuclear power plant lol but I'm just curious and think it would be pretty fun to figure out, the only problem is I don't remember the exact steps to go about figuring this out. Can anyone help? I know I need to measure the circumference, but how do I substitute for the three inner "spokes"? Also what steps would follow this?

The object in question:
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You would treat each triangular hole as a separate loop (assuming the points of the star were connected electrically to the rim)

Then it's just a question of the area of each of these loops, with one turn each, and the speed of the car. The Earth's magnetic field is around 50microT for mid latitudes
 
NobodySpecial said:
You would treat each triangular hole as a separate loop (assuming the points of the star were connected electrically to the rim)

Then it's just a question of the area of each of these loops, with one turn each, and the speed of the car. The Earth's magnetic field is around 50microT for mid latitudes

Moving a loop of wire through a magnetic field with constant velocity. You only produce electricity if the magnetix flux through the loop changes, so you'd have to turn the car.
 
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