Wright, Mark R., 1854- · London : Longmans · leaf 221
magnetic) and equal currents pass through bothwires. If a magnetic needle, free to turn horizontally but not vertically,is hung half-way between the wires, how will it be effected (a) if thecurrents are both in the same direction ? {h) if the currents are in oppositedirections ? 6. A wire lies east… … Fig. 2a6. The Current—The Galvanometer •213 7. If you have within reach two wires, connected one to one end and theother to the other end of a voltaic battery which is hidden, say how youcould tell which wire is connected to the zinc end of the battery. 8. Describe an astatic galvanometer; why is…
Physics
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