Electrical Measurements and Their Applications |
Contents
Electrical Laboratory PracticePrecision of Measurements | 3 |
EXPERIMENT | 7 |
Direct Current Measurements Using Deflection Meters | 17 |
Copyright | |
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accuracy adjusted alternating current ammeter amplifier amplitude approximately attenuator balance battery calibrated capacitor cathode characteristic impedance coaxial line coil Compute condenser conductors connected constant counter curve damping deflection determined devices direct current effect Electrical Measurements electrons elements energy equal equation error flux density frequency range full scale gage galvanometer grid Hence impedance bridge indicated inductance inductor input impedance instrument ionization leakage low frequency magnetic field magnitude microphone obtained ohms oscillator output voltage parallel pass band percent phase position potential difference potentiometer precision measure probe proportional pulse pyrometer quantity quency R₁ R₂ radiation radio frequency ratio reactance reading rectifier resistor resonant sensitivity shield short circuit shown in Fig shunt signal standard cell strain stray capacitances switch temperature terminals thermal thermocouple tion torque usually V₁ vacuum tube volt voltage voltmeter wave length Wheatstone bridge Z₁ zero