Helmholtz coil design !!?

1. You need to define the required B-field strength of the Helmholtz coil first, as an input.

2. Use the Helmholtz equation to determine the required current for your given geometry and B field.

http://en.wikipedia.org/wiki/Helmholtz_coil

3. Use the solenoid equation to determine the inductance of the resulting coils. Note that you have two coils. Be sure to double the inductance calculated for a single coil.

http://en.wikipedia.org/wiki/Solenoid

4. Calculate the required capacitance for resonance at 500 kHz. w0 = 1/sqrt(L*C).

http://en.wikipedia.org/wiki/RLC_circuit

5. Heat will depend on the resistance in your circuit and and any stray magnetic coupling nearby.

You can calculate the resistive losses from the data for your coil wiring and capacitor losses, but the stray magnetic losses will depend on the location of the coil.

See figure 7 of the wiki page on RLC circuits for the details.

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Helmholtz coil design !!?

I'm trying to build a Helmholtz coil which is in parallel with a capacitor. I need to supply this circuit with an AC current with the frequency of 500 KHz and maximum voltage of 200 V (or more). The radius of the coils and the distance between the coils are considered to be 30 cm (0.3 m). With...