Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 516
r is taken through the wire, k, as before, to the post, v,but the wire, /, is now in electrical connection with thebinding post, u, through the switch, N, button, s, and wire,t; therefore the current is taken away from the machine byinserting wires in the posts, u v. When not connected with a… … Transverse Section of Commutator. induction coil. The extra current from this machine is suffi-cient to give strong shocks, ignite powder, etc. By connect-ing it with a helix or electro-magnet, small permanent mag-nets may be charged.. For many purposes this machinewill be found equal to four or…
Physics · Lantern projection · Electric apparatus and appliances
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