International Library of Technology · Scranton, International Textbook Co. · leaf 176
to the angleof deflection. As the use of the mirror and ray of light as apointer merely doubles the angle of deflection, it will intro-duce no serious error to consider the quantity of electricityproportional to the swing of the spot of light across thescale, and formula 452 may be modified to read… … B P Fig. 969. which may be swung back, as shown, to examine or removethe magnetic system. Each coil is supported from a brass strip, both of whichare clamped in place by the nut N. Connections to the coils are made from the terminalsP, P^, the coils being connected together through the…
Electrical engineering
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