Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 249
FIG. 169. — Diagram of two telephones connected. current through the primary coil P of the induction coil; andwhen it moves out, this current is decreased. When thecurrent is increasing in the primary coil, an induced current INDUCED CURRENTS 235 is produced in one direction in the secondary S of…
Physics · Home Economics
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