Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 67
s is a direct deflection method andconsists in determining first the resistance that will deflect theneedle through one division of the scale on a given battery 486 HAWKINS ELECTRICITY current, then with this as a basis for comparison the voltmeteris connected across the unknown resistance whose… … Pig. 561.—Megohm box or set of standard high resistances. The box contains five resist-ances of 200,000 ohms each. The six pillars are petticoat insiilated, the resistances beingplaced between each pair of pillars. There is a double contact post on top of each piUaiso that these can be connected…
Electrical engineering
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