Author Topic: Johnson-Nyquist noise through a transformer  (Read 1150 times)

Offline goran d

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Johnson-Nyquist noise through a transformer
« on: 02/13/2018 04:02 PM »
What is to stop us running an AC nano-motor with Johnson-Nyquist noise? You can say, that the deformations in the motor will cancel out the current. But what if we keep two thermally insulated coils on a transformer. The hot coil is the source of the noise, the cold coil is the one fed into the AC motor. Then the power received by the motor will be greater than its own noise and it can spin? :o

Offline whitelancer64

Re: Johnson-Nyquist noise through a transformer
« Reply #1 on: 02/13/2018 05:17 PM »
The energy required to generate the noise will be greater than what can be extracted from it.
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