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 90
D TESTING APPARATUS 509 If the pressure of the standard cell be 1.018 volts, then 7,840 + 100 =7,940. Pointing off two places, gives 79.40, which multiplied by 1.018gives 80.82 for the voltage on the circuit. To Measure Internal Resistance of Cell with QueenAcme Set.—First compare its voltage on… … Fig. 586.—Evershed portable ohmmeter set. This testing set consists of a direct reading ohm-meter which indicates by direct reading the value of the resistance being tested, also aportable hand dynamo which provides at any required pressure the current necessary tomake the test. It is adapted to…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
