What is wrong with Ampere's force law?

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Ampere's Force Law, expressed as F = 2*mu0/(4Pi*r) * I1*I2, is debated for its applicability to real-world scenarios, particularly with finite wire lengths. The law is derived under the assumption of infinitely long wires, leading to concerns about its usefulness for practical applications. Critics argue that it yields the same results regardless of wire length, making it seem ineffective. The discussion highlights that while both Ampere's Force Law and the Lorentz force equation can calculate forces, they operate under different conditions, with the former being limited to idealized scenarios. Ultimately, the consensus is that Ampere's Force Law is not applicable for finite wires, raising questions about its relevance in practical situations.
  • #31
Dunnis said:
One ampere IS one coulomb per meter per second

No, it is not. It is 1 C/s. As the equations you posted said.

Anyway, your question has been answered, over and over again. If you choose not to accept the answer, there's not much more to be done. We might as well close this thread.
 

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