Methods of Electrical Measurement |
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Page 22
... plate and concentric - cylinder capacitances are derived assumed no " fringing " of electrostatic lines of force at the edges of the plates or cylinders . Hence a guard - ring construction is necessary as shown in fig . 1.10a and b ...
... plate and concentric - cylinder capacitances are derived assumed no " fringing " of electrostatic lines of force at the edges of the plates or cylinders . Hence a guard - ring construction is necessary as shown in fig . 1.10a and b ...
Page 150
... plates . For the simple case of parallel plates , it can be shown ( see below ) that the displacement of the spot on the screen is proportional to the p.d. between the deflector plates . The tube can therefore be used for quantitative ...
... plates . For the simple case of parallel plates , it can be shown ( see below ) that the displacement of the spot on the screen is proportional to the p.d. between the deflector plates . The tube can therefore be used for quantitative ...
Page 166
... plates . The oscillograph has equal deflection sensitivities along the two axes . The oscillogram is an ellipse ... plates , the pairs being mutually perpendicular . Each plate is 1.5 cm . long , the spacing between the plates being 1 cm ...
... plates . The oscillograph has equal deflection sensitivities along the two axes . The oscillogram is an ellipse ... plates , the pairs being mutually perpendicular . Each plate is 1.5 cm . long , the spacing between the plates being 1 cm ...
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Common terms and phrases
a.c. potentiometer a.c. Supply accuracy accurate adjusted alternating alternating current ammeter amperes anode arrangement B.Sc.II balance condition ballistic galvanometer beam bridge circuit bridge methods C₁ C₂ calculated calibrated capacitance cathode-ray tube charge circuit of fig components connected in series constant deflection detector determined dielectric dimensions direct current e.s. units effect electron electrostatic equal flux density frequency give Hence hysteresis I₁ impedance induced e.m.f. insulation L₁ l₂ large number loop M.K.S. unit magnetizing force measurement meter mutual inductance non-inductive resistance number of turns obtained ohms parallel phase angle plates possible potential difference potentiometer power factor primary standard R₁ R₂ reactance reading resonance reversed S₁ screen search coil self-inductance sensitivity shown in fig shunt slide-wire solenoid specimen suitable switch tance terminals Thévenin's theorem unknown p.d. usually V₁ V₂ valve voltmeter variable voltage voltmeter volts wattmeter Wheatstone bridge wire Y-plates zero