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 279
nd costofdynamometers rapidly increase with the maximumcurrents which they. are designed to carry, andwhen more than 500 amperes are to be measured,the use of other instruments and methods isrecommended. Ques. In the con-struction of a dyna-mometer what materialshould not be used andwhy? Ans. No…
Electrical engineering
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