Standard Resistance in ventures of 0.01 ohm in arrangement with a calibratedslidewirs
100 divisions equivalent to 0.01, ohms Rotary compose multiplier switch 0.01,
0.1, 1, 10 and 100 gives a scope of estimation 0.000001 to 1.1 ohm.
Modern Kelvin Double Bridge:
Standard opposition :
There are 10 curls of 0.01 ohm each masterminded on turning dial in addition to a round slidewire of aggregate opposition 0.01 ohm and 500 sub divisions. Each sub-divison is equivalent to 0.00002 ohms on the ordinary range.
Conductivity connection :-
It is a game plan to hold Specimens as wires bars, strips and so forth. Separation between potential focuses is 500 mms, potential terminals are given.
Duplicating Ratio :-
• A solitary revolving switch outfits 3 duplicating proportions of x1, x0.1 and x0.01
Scope of Measurement :-
• 1 to 0.00001 ohms on various extents.
• Maximum Current : 2 amperes
• Panel :- A backlite board encased in a teak wood box is utilized, Separate present and potential terminals, battery and galvanometer terminals, push catches for battery and galvanometer are given on the board.
• Accuracy :- + 0.1%
• Coils :- Manganin Coils are utilized
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