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Originally Posted by cyrek1
Cyrek reply
I use the criteria specified because the Ampere formula determines the force between two currents set at a specified distance and determined for a certain length of the force fields that result from the currents involved. This establishes a relationship between the electron and the forces it produces.
This gives me an opportunity to determine the forces generated by adjusting different values for different conditions as I have specified.
I wanted to find out how strong a magnetic field a single electron would generate. This formula gave me that opportunity.
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You also need to be aware that the definition of the Ampere applies to two
long straight wires. The field generated by a single point charge will not be the same as that generated by current in a (infinitely) long wire. You might want to try some background reading on the Biot-Savart law (it is from this that you can derive the field due to an infinitely long wire, as assumed in the definition of the Ampere,) as well as, possibly, Maxwell's equations.
[edit]Just a
minor additional point. B-S is really a steady state equation, and by itself doesn't incorporate any of the propagation time effects, so even this would only be an approximation (though a far better one.)
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