Callender and Griffith's Bridge Dial Type :- This instrument is a change over the Student's Potentiometer. The 50 cms in length side wire of 1 ohm obstruction is adjusted into 100 sections to facilitrate computations. 14 loops are orchestrated in arrangement in dial from each being of 1 ohm opposition. Exactness of change 0.1% A 2 volts collector through a Rheostat and Key ought to be associated with terminal P1 to P2 and the P.D. to be adjusted on it. The estimation of Potential Gradient can be found by institutionalizing it through a Galvanometer associated with G.C. The estimation of Potential Gradient can be discovered institutionalizing it against a standard cell, and hence it can be made direct perusing. Imported Testing Bridge.
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