A Manual of Electrical Measurements |
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... MEASUREMENTS Resistance . Exp . 3-1 . Grounds and Crosses in a Many - Stranded Cable . Exp . 3-2 . The Kelvin Double Bridge . Exp . 3-3 . The Temperature Coefficient of Resistance . Exp . 3-4 . Measurement of High Resistance by the Loss ...
... MEASUREMENTS Resistance . Exp . 3-1 . Grounds and Crosses in a Many - Stranded Cable . Exp . 3-2 . The Kelvin Double Bridge . Exp . 3-3 . The Temperature Coefficient of Resistance . Exp . 3-4 . Measurement of High Resistance by the Loss ...
Page 3-5
Robert Quinly Gregg. EXP 3-5 . DIRECT MEASUREMENT OF RESISTANCE The resistance measured at mid - scale is Rx = R ( 1 / 0.5 - 1 ) = Rg , = so the ohmmeter should be designed with an internal resistance approxi- mately equal to the resistance ...
Robert Quinly Gregg. EXP 3-5 . DIRECT MEASUREMENT OF RESISTANCE The resistance measured at mid - scale is Rx = R ( 1 / 0.5 - 1 ) = Rg , = so the ohmmeter should be designed with an internal resistance approxi- mately equal to the resistance ...
Page 4-3
... Sometimes it is necessary to measure a resistance while a definite , known current exists in it . In nonlinear resistances , for example , the resistance EXP . 4-3 . MEASUREMENT OF CURRENT AND RESISTANCE USING Experiment 4-3.
... Sometimes it is necessary to measure a resistance while a definite , known current exists in it . In nonlinear resistances , for example , the resistance EXP . 4-3 . MEASUREMENT OF CURRENT AND RESISTANCE USING Experiment 4-3.
Contents
Exp 34 Measurement of High Resistance by the LossofCharge Method | 3-4 |
Exp 36 The Quadrant Electrometer | 3-5 |
Exp 38 Measurement of Capacitance by the Method of Mixtures | 3-9 |
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adjust alternating current ammeter ampere amplifier applied balance ballistic galvanometer battery bridge C₁ C₂ cable calculated calibration capacitance capacitor cathode cell charge circuit as shown computed Connect the circuit curve damping ratio determine device diagram dial direct current electrical electrometer equal equation experiment figure flux density frequency galvanometer galvanometer deflection graph grid potential heater high resistance impedance indicated inductor input instructor magnitude maximum meas MEASUREMENT OF RESISTANCE measuring circuit meter method milliamperes mutual inductance obtained ohmmeter ohms oscillator oscilloscope output plate current plate voltage plot position possible potential difference potentiometer probable error quantity R₁ R₂ range reading Repeat resistance boxes resistor resonance rheostat S₁ scale self-inductance sensitivity series capacitance shunt sistance solenoid standard suitable switch temperature terminals thermistor thermocouple uncertainty unknown vacuum thermocouple vacuum tube variable varistor vector voltmeter volts wattmeter wire wwwww zero