Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 184
-Ampere Frame Stand withCoils. The movable coils are poised on needle pointsand the terminals dip in concentricmercury cups. current around the coil when the ELECTROMA GNETISM. 165 … MAGNETIC FORCE Fig. 149. the thumb outstretched at right angles will point toward theN-pole, then the fingers will point in the direction of the cur-rent. hi If on viewing the ll end of a solenoid thecurrent flows aroundthat end, in the samedirection that thehands of a watchmove, Fig 150, thatend…
Electricity · Magnetism
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