Question:

Why can't we use permanent magnets in high power generators?

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Why can't we use permanent magnets in high power generators?

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  1. In order to match (not exceed) the electrical load, the output from generators must be variable. If you have a better way, I'd like to hear it.


  2. Need to very the magnets to control the voltage.

  3. Bec. We can use coils

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