Wright, Mark R., 1854- · London : Longmans · leaf 239
current passes through the foiland fuses it. 2. Magnetic Effect.—Twist apiece of covered wire into a spiral A(fig. 237), rest it on a support and afiSx aknob to each end; insert a smallneedle sum the spiral, connect oneend of the spiral to the outer coatingof a positively charged Leyden jar,… … Fig. 237.
Physics
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