International Library of Technology · Scranton, International Textbook Co. · leaf 222
F., to find the current. Suppose it is re-quired to find the impressed E. M. F. E necessary to set upa given current C. The E. M. F. required must be theresultant sum of the E. M. F. required to overcome the resist-ance and that required to overcome the self-induction. Theformer must be equal to R… … CB Current^—. n « Fig. 1464. to represent CRin the same direction as the current; and0 b, 90° ahead of the current, is laid off equal to % tz n L C.The impressed E. M. F. E must be the resultant oi o a and0 b, or the diagonal oc. The diagonal oc, therefore, repre-sents the E. M. F. set up by the…
Electrical engineering
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