The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 31
ent flowing will be given in amperes. If brepresents ohms, e volts, and c amperes, then the relation between the three will be represented by c = — , or e = cb, or Rb = - ; so that, given any two of these quantities, it is easy to find the third. This law applies equally to a portion of acircuit as… … Fig. 3 conductor, and is from that impressed upon the conductor, soas to produce the various effects in the form of heat or work.The conductor merely acts as a guide to the electric waves,keeping them directed along the circuit instead of allowingthem to spread in all directions through the ether…
Telephone
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