A reproduction of some portions of Faraday's diary : presented by the managers of the Royal Institution of Great Britain / [Michael Faraday].
- Michael Faraday
- Date:
- [1931]
Licence: In copyright
Credit: A reproduction of some portions of Faraday's diary : presented by the managers of the Royal Institution of Great Britain / [Michael Faraday]. Source: Wellcome Collection.
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![ductors in contact at once—both for that the edge of the plate was not perfectly regular and also that the stand was not steady. 108*. Then suspecting terrestrial action, especially as plate was revolving nearly in Magnetic meridian, the latter was raised until the magnetic poles were in the plane of the magnetic equator of the revolving plate, but the effect was the same, i.e. the south pole went west when the plate moved from left to right above. By depressing the place of magnetic poles still lower still the same deflection was produced when the plate revolved the same way. 109. Hence the earth’s effect either null or too small to confuse the experiment. not. Then endeavoured to examine effect more minutely. Put conductors as in the figure, i.e. the left hand one between the poles and the other at one side on the right; then revolving the plate as the arrows point out the S pole went east. nit. But on making the motion and every thing else the same, except that the right hand conductor was between the pole and the left a little to the left of it (which did not require more than an inch of displacement), now the S pole went west, i.e. the reverse of the last expt. 112§. Hence it was evident there ought to be a nearly neutral position, and on examining the position of equidistance more care¬ fully it was found that the power though westerly was very weak and depended more upon irregularity of contact than con¬ stant action. This had every appearance of a neutral position. 113II. Now the experiment was repeated except that the motion of the plate was reversed. The conductors being placed as in vi, south pole went west instead of east. 114^. On placing conductors as in vii the south pole went east instead of west. f [114] !l [113]](https://iiif.wellcomecollection.org/image/b29980446_0033.jp2/full/800%2C/0/default.jpg)
