Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 434
end of the core. The effect of the core,therefore, is to increase the number of lines of force whichare concentrated at the different poles, and consequently toincrease the power of the magnet. The strength of tlie magnet may be still further increasedby bringing the polesclose together so thatthe…
Physics
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