Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 468
Resistance Box Connections. the fourth blocks only by going through the third coil, and topass from the fourth block to the fifth, the current mustpass through the fourth coil. Whenever a plug is inserted itcuts out the coil connected with the blocks between whichthe plug is placed, and when a plug… … Diagram of Bridge Connection. resistance box are wound double, so that the current passesinto the coil in one direction and out of it in the opp(.)sitedirection, thus perfectly neutrabzing any magnetic effects.Fig. 434 represents the top of the bridge resistance box,and the circuits…
Physics · Lantern projection · Electric apparatus and appliances
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