Principles of Electrical Measurements |
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Page 74
... electrode serves to intercept the surface leakage current and prevent it from reach- ing the galvanometer . The action of the electrode in the second diagram is similar except that its purpose now is to divert the component of current ...
... electrode serves to intercept the surface leakage current and prevent it from reach- ing the galvanometer . The action of the electrode in the second diagram is similar except that its purpose now is to divert the component of current ...
Page 416
... electrode , while the fixed high - voltage electrode takes the form of a dumbbell . Initially the ellipsoid rests at an angle of some 70 ° to the axis of the dumbbell , but when voltage is applied it tends to be deflected into line ...
... electrode , while the fixed high - voltage electrode takes the form of a dumbbell . Initially the ellipsoid rests at an angle of some 70 ° to the axis of the dumbbell , but when voltage is applied it tends to be deflected into line ...
Page 587
... electrode is governed by the relative concentrations of hydrogen ions at the electrode and in the solution . Greater concentration of ions in the solution tends to deposit positive charge on the electrode and vice versa . The hydrogen ...
... electrode is governed by the relative concentrations of hydrogen ions at the electrode and in the solution . Greater concentration of ions in the solution tends to deposit positive charge on the electrode and vice versa . The hydrogen ...
Contents
CHAPTER | 1 |
MOVINGIRON INSTRUMENTS | 8 |
ELECTRODYNAMIC INSTRUMENTSIRONCORED TYPE | 18 |
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accuracy adjustment alternating current ammeter ampere anode anode current applied balance condition C₁ C₂ calibration capacitance capacitor Carey Foster cathode condenser connected constant convenient current coil damping deflection detector dielectric difference dimensions direct current disc earth effect electric electrodes electrodynamic electrostatic equal equation error factor field flux galvanometer grid harmonic Hence I₁ impedance indication insulation kc/s magnetic magnitude Manganin means measurements meter method metre movement moving coil moving-iron mutual inductance necessary obtained operating oscillator oscillograph phase phase-angle plate pointer position potential potentiometer power-factor precision quadrature R₁ R₂ range ratio arms reactance reading rectifier resistance box resistor resonance scale screen sensitivity shown in Fig shunt slide-wire standard cell suitable supply switch symmetrical components temperature coefficient torque transformer units V₁ V₂ valve voltmeter variable vector volt voltage voltage coil voltmeter wattmeter waveform Wheatstone bridge winding wire Z₁ zero