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.

In: Physics

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Anonymous 0 Comments

Imagine popping a pimple. You have to squeeze really hard (high voltage), but when it pops only a little bit of stuff comes out (current).

The voltage is kept high on the fence so that it can overcome enough resistance to shock you, but there’s just not a lot of current available to shock you that much.

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