Library of Useful Knowledge: Natural philosophy, Volume 2Baldwin and Cradock, 1829 - Physics |
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Page 19
... wire , so as to bring the north pole , for instance , nearer to it , there was attraction ; but on moving it a little farther , so that the end of the needle was the point nearest to the wire , repulsion took place , al- though the wire ...
... wire , so as to bring the north pole , for instance , nearer to it , there was attraction ; but on moving it a little farther , so that the end of the needle was the point nearest to the wire , repulsion took place , al- though the wire ...
Page 50
... wire ; and the short arrows pro- ceeding laterally from the middle , the direction of the motion induced in the wire . ( 139. ) It is evident that , in all these cases , the wire is moving in obedience to the same law , which produces ...
... wire ; and the short arrows pro- ceeding laterally from the middle , the direction of the motion induced in the wire . ( 139. ) It is evident that , in all these cases , the wire is moving in obedience to the same law , which produces ...
Page 53
... wire of a galvanic battery has a sensible attraction for iron filings , and that it will hold them suspended like an artificial magnet , as long as the electric current circulates through the wire ; but the moment the galvanic cir- cuit ...
... wire of a galvanic battery has a sensible attraction for iron filings , and that it will hold them suspended like an artificial magnet , as long as the electric current circulates through the wire ; but the moment the galvanic cir- cuit ...
Contents
POPULAR INTRODUCTIONS to NATURAL PHILOSOPHY By | i |
Page | xvii |
MARCET icx | 10 |
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acid action aperture appear ascer attraction axis ball battery body brass centre centre of gravity circle colours compass concave conductor convex convex lens copper cylinder degree diameter direction distance earth effect elec electric current electric fluid electroscope equal experiments Fahrenheit fixed flint glass focus force galvanic glass gravity heat horizontal hygrometer inch induction instrument intensity iron length lens lenses lever light magnet ment mercury metal motion move needle Newton north pole object object-glass obliquely observed opposite parallel particles passing perpendicular phenomena piece placed plane plate polarity portion position prism produced proportion pyrometer quantity rays reflected refraction refrangible rendered repulsion retina right angles ring round side south pole specific gravity spherical aberration steel substance surface telescope temperature theory thermometer thickness tion tricity tube velocity vertical voltaic weight wire zinc