How can electric fences have a high voltage and low current when current is proportional to voltage?

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As I understand it, voltage is the difference in charge between two points. The greater that difference, the greater the current because more electrons will flow between the two points.

I thought a high resistance might explain this, but apparently the metal in electric fences have very low resistance.

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Anonymous 0 Comments

*For a given resistor*, voltage and current are proportional. If you lower the voltage of an electric fence then the current will be even lower. But different resistors can have different resistance.

Electric fences have a very high resistance between the fence and everything else, so the current is low even with a relatively high voltage.

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