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Old August 23rd 04, 12:42 AM
Reg Edwards
 
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I'll just take a guess.

If you take a half-wave dipole and gradually bend it into a circle, then,
for a constant current, the field set up at a distance will crudely reduce
in proportion to the direct distance between its ends.

The greatest distance between its ends is when it is just a straight wire.
---
Reg.


 
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