Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 444
aic cell, wire with an insulating covering,and a bar of soft-iron, one end of wliich was marked, state exactly whatarrangements you would make in order to magnetize tlie iron so that themarked end might be a iV^-pole. Give diagram. 2. A current is flowing through a rigid copper rod. How would… … Fig. 524.—Ammeter or voltmeter. C, movable coil; sp, oneof the springs; N, S, poles of the permanent magnet;p, pointer. 43 i MAGNETIC RELATIONS OF THE CURRENT 3. A telegraph wire runs north and south along the magnetic meridian.A magnetic needle free to turn in all directions is placed over the…
Physics
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