Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 368
it to send outsound waves exactly like those whichfell upon the diaphragm of the trans-mitter. Telephonic conversation can be car-ried on over great distances as rapidlyas if the parties sat on opposite sidesof tlie same table. An electrical im-pulse passes over the telephone wiresfrom New York to… … Fig.-339. Cross section of a long-distance teleplione transmitter 318 INDUCED CURRENTS QUESTIONS AND PROBLEMS 1. Draw a diagram of an iuduction coil and explain its action. 2. Does the sjiark of an induction coil occur at make or at break ?Why? 3. Explain why an induction coil is able to pxoduce…
Physics
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