Principles of Electric and Magnetic Measurements |
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accuracy adjusted alternating current ammeter ampere angle anode approximately axis balance ballistic bridge C₁ calculated calibration capacitance cathode cell condenser conductor connected connexion constant copper curve damping deflection determined direct current disc eddy currents effect electric electrodes electromagnet employed equal equation ferromagnetic field-strength flux density galvanometer grid heater hysteresis impedance increased induced e.m.f. inductometer instrument insulation ions Kc/s known length loop magnetic circuit magnetic field magnetizing coil magnetizing current magnetizing force magnetometer material maximum means measured meter method metre moving coil multivibrator mutual inductance needle number of turns obtained ohms oscillations oscillograph permeability permeameter plate position potential potentiometer produced proportional quartz radio frequencies ratio reading resistance resonance reversed rotation search-coil secondary sensitivity shown in fig shunt specimen standard strips suitable tance temperature terminals torque torsion transformer tube uniform usually variable varies vertical vibration voltage voltmeter volts wattmeter Wheatstone bridge winding wire wound zero