Callender And Griffith’s Bridge Dial Type
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 […]