Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 311
•^^ cii. XVII. GALVANOMETERS 285 board ship. In such cases we over-compejisate the earths fieldand direct the needle by the magnet alone. The fibres supportingthe needle are fixed at top and bottom, and so prevent it fromswinging against the sides of the coil in which it works. (v.) To the needle…
Electricity
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