The C.N.R. Project

The Chung's Apparent Negative Resistance simulation

Created on 05-20-01 - JLN Labs - Last update 05-27-01
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The Chung's Apparent Negative Resistance Effect can be reproduced also with a common resistive bridge. This has been fully analysed during some discussions in the JLN Labs group-list ( see : The Chung's Apparent Negative Resistance can be simply explained by the Ohms Law ? )

In the experiment below, I have built an equivalent electronic circuit which reproduces the junction of the carbon fiber strips.

This diagram above reproduces the junction of two carbon fiber filaments.
This simulated circuit shows also an Apparent Negative Resistance ( the yellow area )
when the resistance of the junction ( RP ) is lower than 0.777 ohm, see below.

The strips of carbon fiber have been replaced by resistances, I have used two tungsten resistive wires ( 3 ohms each ) to simulate two carbon fiber filaments for each branch ( see below ).

Four short tungsten wires ( RP=0.2 ohm ) are used to simulate the carbon filaments junction.

Below, the picture of the experimental testing setup.

When the apparatus is connected at the points A-C to a 10 V DC power supply through a 10 ohms resistor, the Digital Voltmeter ( Tektronix TX1-DMM ) shows a NEGATIVE voltage ( -116.5 mV ) across the points B-D as the previous CNR v2.0 experiment.

The Chung's Apparent Negative Resistance Effect can be reproduced experimentally without the use of carbon fiber strips. This experiment confirms fully that the initial effect observed can be explained with the Ohm's law...

Notes: I am grateful to Willard Elliott, Tony Purser and Christian Neel for their helpful contribution to this fascinating project.

Jean-Louis Naudin

For more informations, please contact : JNaudin509@aol.com

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