Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 545
Commutator Connections. connected with the second commutator bar in advance. Thecoils represented by the black lines are thus connected withalternate bars of- the commutator, and in a similar manner q 22 EXPERI-MENTAL SCIENXE. … Weston Arc Lamp. the terminals of thecoils shown in whitelines are connectedthen with intermediatebars of the commuta-tor. By this arrange-ment of the coil ter-minals, short-circuiting-of any coil is avoided,and bv arranging thecoils equally distantfrom the armaturecore, the length of con-ductor in…
Physics · Lantern projection · Electric apparatus and appliances
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