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 allow amplifier applied approximately arrangement average balance bridge calibrated capacitance capacitor charge circuit closed coil compared Compute condition connected consider constant correction counter counts curve deflection depends designed determined devices difference direct discussed effect electrical electrons elements energy equal equation error field flux follows frequency galvanometer give given Hence impedance increases indicated inductance input ionization known length less limit magnetic magnitude material mean measured meter method moving observed obtained ohms operating oscillator output parallel particles pass period phase plates position potential potentiometer precision pressure produce proportional pulse quantity R₁ radiation radio range ratio reading resistance resistor resonant result scale sensitivity short shown in Fig shows signal standard supply switch temperature terminals tube unit usually varies voltage voltmeter wave wire zero