Need some help with electricmagnetism

[zer0shifter]

Hey so I'm doing a class project involving a sort of generator device. The device will be a RC car wheel with very strong but but small magnets that each have a magnetic field of 3200 guass and then next to it will be a donut like wheel with magnet wire wrapped around it in the oppisite direction so when the wheel spins on the RC car it will generate electricty .The problem i need help with though is i don't know how thick i should make the donut/wheel to wrap the coil around so i generate atleast 12 volts from it. i can give you any other additional information you might need but can someone please help me or give me a formula

 

[jbsteele]

to calculate thisThe formula that you need to calculate the voltage output of a generator is V = N x B x r x f, where V is the voltage output, N is the number of turns in the coil, B is the magnetic field strength, r is the radius of the coil, and f is the frequency of rotation. Using your given parameters, you can calculate the voltage output as:V = 3200 * N * (0.5 * r) * fTo get 12V, you can solve for N: N = 12V / (3200 * (0.5 * r) * f)So, once you know the frequency of rotation, you can calculate the number of turns you need to wrap around the donut-shaped wheel to get 12V.

 

[nlightner]

Hello,

Thank you for reaching out for help with your project involving electricmagnetism. It sounds like you have a great idea for a generator device using magnets and a donut-shaped coil. In order to generate a specific voltage, there are a few factors to consider.

First, the strength of the magnetic field will affect the amount of voltage generated. In this case, with each magnet having a magnetic field of 3200 gauss, it is important to determine the distance between the magnets and the coil to maximize the field strength and therefore the voltage.

Secondly, the number of turns in the coil will also impact the voltage output. The more turns in the coil, the higher the voltage output. However, keep in mind that more turns will also increase the resistance of the coil, which can decrease the current and overall power output.

In terms of the thickness of the donut-shaped coil, there is no specific formula as it depends on the other factors mentioned above. It may be helpful to experiment with different thicknesses and distances between the magnets and the coil to find the optimal design for your desired voltage output.

I hope this information helps and I wish you the best of luck with your project! Don't hesitate to reach out if you have any further questions.