Callender & Griffith's Bridge Dial Type For Electrical Lab Training Description and Specifications for Lab Tenders
Callender and Griffith s Bridge Dial Type For Electrical Lab Training Workshop.
Callender & Griffith's Bridge Dial Type :- This instrument
is an improvement over the Student's Potentiometer. The 50 cms long side
wire of 1 ohm resistance is calibrated into 100 parts to facilitrate
calculations. 14 coils are arranged in series in dial from each being of
1 ohm resistance. Accuracy of adjustment 0.1% A 2 volts accumulator
through a Rheostat and Key should be connected to terminal P1 to P2 and
the P.D. to be balanced on it. The value of Potential Gradient can be
found by standardising it through a Galvanometer connected to G.C. The
value of Potential Gradient can be found standardising it against a
standard cell, and thus it can be made direct reading. Imported Testing
Bridge.