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. Electronic apparatus for biological research . _^ Amp ' •"in Cjn _l Figure wise the equivalent circuit degenerates to Figure , we have a high-pass filter, and interference proceeds as before. Magnetic fields—According to the laws of electromagnetic induction a steady magnetic field cannot cause interference but a fluctuating one can. Amp'
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity