Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 250
hatwe can readily throw into thecircuit any number of ohmsdesired. The first figure indicatesdiagrammatically the arrange-ment in a resistance box. Into the circuit we introduce the thickbrass piece T T. This is not continuous, but is divided intoportions connected by the resistance coils. The… … Fig. i.
Electricity
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