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PRINCIPLES OF ELECTRICAL METERS AND MEASURING
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adjustment alternating current Ammeter Standards amperes assembly balance weight battery calibrated cause circuit clean connected copper-oxide current flow Current Supply Unit d-c instrument damping Decibel demagnetizer depot shops designed to measure dial direct current disk Electrical measuring instruments electrodynamometer type electromagnet end play fifth echelon fixed coils frequency meter full-scale deflection hairsprings heater indicate instru instrument designed iron jewel screw junction lines of force lockwasher magnet charger magnetic field measuring instruments ment meter magnet meter pedestal Meter Reads milliammeter milliamperes Millivoltmeter mounted moving coil moving element moving-coil moving-iron vane ohmmeter ohms operation permanent magnet pivot plate pliers plug pointer pole pieces position rectifier type meters remove resistor scale screwdriver series resistor Service Command shaft shunt Signal Depot soldered Standards Unit stationary Supply Unit PP-14/GSM-1 switch temperature terminal thermocouple turning force tweezers usually Voltage Supply Unit voltmeter volts washer wattmeter Wheatstone bridge wire wrenches zero