Why is a 9v battery capable of producing high current but a tesla coil producing thousands of volts can produce very small current?

Question

By Ohm’s law I = V / R. So high voltage should mean high current for constant resistance? Right? I am very confused how this works. Please explain

In: Physics

Answer 1

While Ohm’s Law states a direct relationship between voltage and current for constant resistance, this relationship doesn’t apply in scenarios like Tesla coils where the resistance is not constant. In Tesla coils, the extremely high voltage overcomes the air’s resistance, creating a spark. However, this spark has a very high resistance, limiting the current flow.