Trebel, George. [from old catalog] · New York, F. Tousey · leaf 39
ire isbroken, and one end dips just belowthe surface of mercury in a wine glass,while the other end is placed in thesame liquid at a little distance fromthe first. When the circuit is closedthe current will be parallel with itself,and will flow in the same direction inall parts of the coil that are…
Electricity
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