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THE MEASUREMENT OF SELF INDUCTANCE AT
THE MEASUREMENT OF MUTUAL INDUCTANCE
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a.c. potentiometer accuracy alternate adjustments alternate current potentiometer ammeter amplitude angle applied voltage audio frequencies balance was found bridge methods calibration Carey Foster circuit coil under test component conditions of balance connected D.Sc denote detector determination direct current e0 sin pt effective resistance equal Equating reals Ex.—The fifiF formula harmonic heterodyne wave-meter high frequencies indicated induced e.m.f. inductive coil instrument low frequencies magnitude maximum Maxwell bridge meter method of measuring mica condenser mutual capacitance mutual inductance non-inductive resistance null method obtained ohms oscillation phase piezo-electric points potential divider power factor primary quadrature quartz oscillator range reactance reading residual inductance resis resistance box resistance in series shown in Fig shunt skin effect slide wires standard condenser stray capacitance switch tance telephone terminals thermo-galvanometer valve voltmeter variable air-condenser varying vector diagram vector impedance vibration galvanometer voltage volts Wheatstone bridge whence wireless receiving zero