Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 596
■< or | inch from the coil, G,* and the coil, H,should be similarly arranged in relation to the coil, G, andthe latter should be moved one way or the other until the * This distance is made proportionally greater in the engraving simply forthe sake of clearness. INDUCTION BY ELECTRIC CURRENTS.… … 574 EXPERIMENTAL SCIENCE. ticking of the clock on the microphone is no longer heard ;then the inductive effect of one of the outer coils is exactlybalanced by that of the other. To disturb this balance it isonly necessary to insert in one or the other of the pairs ofcoils a coin or other object, as…
Physics · Lantern projection · Electric apparatus and appliances
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