![]() Simple Potentiometer with Independent Calibrating Circuit.Light Load Adjustment or Friction Adjustment.Theory of Single Phase Induction Type Energy meter.Extension of Range of wattmeter using Instrument Transformers.One wattmeter Method for Reactive Volt-amperes Measurement.Modified Version of 2 wattmeter Method as One wattmeter Method. ![]() Power Factor Calculation by Two wattmeter Method.Low Power Factor Electrodynamics Type wattmeter.Shape of Scale of Dynamometer wattmeter.Measurement of PowerMeasurement of Enegy.Electrodynamometer or Weston Type Synchroscope.Difference between Instrument and Power Transformers.Derivation of Phase Angle ( θ ) of Transformer.Extension of Range of Electrostatic Instruments.Loading Effect, Precautions to be taken while using a Voltmeter, Requirements of a Multiplier and Ammeter and Voltmeter.Permanent Magnet Moving Coil Instruments (PMMC).Effect of External Resistance on Damping.Introduction to measuring instruments and Clasification of Measuring Instruments.
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