Apparatus for small alternating current power measurement
B.G. Churcher · Journal of Scientific Instruments · 1925
The article deals with an equipment constructed for carrying out small value alternating E.M.F. current and power measurements required in the course of research work in electrical engineering. The design of the instruments and the arrangements provided for their calibration are described. Finally, the results of a series of tests carried out to determine the limitations of the instruments are given.