Electrical Measurements and the Calculation of the Errors Involved, Part 1Macdonald, 1950 - Electric measurements |
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a₁ a₁t a₂ ammeter amps angular speed AR'x arrangement is shown arrangement of fig B₁ ballistic galvanometer battery cable calculated calibration charge condenser connected constructional error D₁ damping discharge division dR₂ dt dt E₁ flux linkages fluxmeter fluxmeter circuit full-scale deflection gR₁ high resistance i₁ i₂ impulse inductance instrument insulation resistance k₁ k₂ L₁ logarithmic differential manganin measured meter method moving coil N₁ needle negligible number of turns ohmmeter ohms open circuit oscillations P₁ pointer potentiometer R+ Rv R+R₁ R₂ radians ratio reading error relative error resistance R₁ restoring torque rheostat rheostat Rh S₁ S₂ scale shown in fig shunt standard resistance substandard Systematic Error t₁ temperature torque total resistance V₁ voltage voltmeter volts wattmeter Wheatstone bridge wire write αι απ ΔΙ ΔΦ ΔΦι Φο ωο