Title :
Experimental verification of the Biot-Savart-Lorentz and Ampere force laws in a closed circuit, revisited
Author :
Moyssides, Paul G.
Author_Institution :
Dept. of Phys., Nat. Tech. Univ. of Athens, Greece
fDate :
9/1/1989 12:00:00 AM
Abstract :
In a completely new experimental analysis it is shown that the experimental value of the slope Fcd/I2 (electrodynamic force/current2) for specific pi-frames is in excellent agreement, within the error, with the value calculated theoretically using the Biot-Savart-Lorentz and Ampere force laws for the same pi-frames, in contradiction to other experiments and theories which state the opposite. In the analysis, which uses the least-square fitting routine MINUIT, the restoring force of the moving pi-frame, the surface tension of mercury, and the pinch effect were taken into account in a precise way. The experiments concerned the quantitative measurements of the force acting on the moving pi-frame from the rest pi-frame, and the current in the closed circuit
Keywords :
electrodynamics; electromagnetic induction; electromagnetism; Ampere force laws; Biot-Savart-Lorentz; MINUIT; closed circuit; electrodynamic force; least-square fitting routine; pi-frames; pinch effect; restoring force; surface tension; Circuits; Current distribution; Current measurement; Electrodynamics; Force measurement; Iron; Least squares methods; Surface fitting; Surface tension; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
