Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 433
t itselfin tJiA position in which the maxiinuin number of lines offorce will pass tltrough it. 500. Magnetic Conditions of a Helix. Ampere showed thatthe magnetic power of a wire carrying a current could beintensified by winding it into the form of a spiral. Themagnetic properties of such a coil… … Fia. 5fH3.—A helix carrying a current be-haves like a bar-magnet. Connect the ends of the wire with the poles of avoltaic cell, and with a inag-netic needle explore the regionsurroundincf it. Next make a helix some-wliat larger in diameter, sayabout three-quarters of an inch,and place it in a…
Physics
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