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Conversion of Galvano Meter into Voltmeter-Physics-Lab Mannual

Exercises, Physics

Post: July 17th, 2012
Description
This is lab manual for Physics course. It was designed by Sakash Jashith at Allahabad University. It includes: Conversion, Galvanometer, Voltmeter, Ammeter, Working, Principle, Formula, Deflection, Resistance, Shunt
This is lab manual for Physics course. It was designed by Sakash Jashith at Allahabad University. It includes: Conversion, Galvanometer, Voltmeter, Ammeter, Working, Principle, Formula, Deflection, Resistance, Shunt
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sateesh
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Contents
Experiment : Object: Theory: CONVERSION OF GALVANOMETER INTO VOLTMETER / AMMETER To convert Galvanometer into Voltmeter and Ammeter. Galvanometer: A galvanometer is a device used to find direction of current and its magnitude. It has small resistance and is connected in series. Galvanometer is an electromechanical instrument which is used for the detection of electric currents through electric circuits. Being a sensitive instrument, Galvanometer can not be used for the measurement of heavy currents. Working Principle Galvanometer works on the principle of conversion of electrical energy into mechanical energy. When a current flows in a magnetic field it experiences a magnetic torque. If it is free to rotate under a controlling torque, it rotates through an angle proportional to the current flowing through it. AMMETER: It is a low resistance galvanometer, used to measure current in a circuit. The current to be measured must pass through it, hence, it is connected in series combination..

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