An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 419
nt.In this system the lamps are connected in series, and, as it oftenhappens that some of the lamps go out, the high voltage re-quired to give a constant current must vary with the numberof lamps in circuit. The constant-current transformer is an ingenious machinefor transforming the constant… … LoadSeries L/iinptt Fig. 260. — Constant-current transformer with movable secondary coiland series lamp circuit. in which the secondary coil is suspended and so nearly counter-balanced that very little force is needed to lift it up and separateit from the primary. When the secondary coil is…
Electricity · Magnetism
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