Advanced Electrical Measurements |
Contents
CHAPTER IOBSERVATIONAL DATAGRAPHICAL REPRE | 1 |
CHAPTER IIMEASUREMENT OF RESISTANCE | 14 |
Measurement of Specific Resistance | 20 |
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a₁ accuracy adjustment alternating current ammeter ampere amplifier apparatus as shown balance ballistic galvanometer battery calibration capacitance cathode centimeter charge circuit coil compute condenser conductors connected constant correction couple Courtesy of Leeds current flowing cycle D'Arsonval damping decrease determined dial direct current discharge electrical electrometer electromotive force electrons electrostatic equal equation errors EXPERIMENT filament flux frequency gauge high resistance instrument ions junction K₁ known laboratory Leeds and Northrup low resistance manometer maximum McLeod Gauge mercury metal meter method millimeters mutual inductance needle obtained ohms oscillator plate current Plot a curve position potential difference potentiometer precision measure pressure proportional pyrometer quadrants quantity R₁ R₂ ratio reading rheostat sensitivity shown in Fig shunt slide wire standard cell standard resistance switch temperature thermocouple torque unit unknown usually V₁ vacuum tube variable velocity voltage voltmeter volts wave length Wheatstone bridge zero