Students' Kelvin Bridge Abron
Students' Kelvin Bridge Abron

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Usage : A useful instrument for resistance determination of transformer winding and motor winding.
Basic Structure : With built-in galvanometer having sensitivity of 1 micro Amps per mm and a dry battery of
1.5 V( 3 cell of 1.5 V each in parallel manganin coils).
Range of
: 0.00001 ohms to 110 ohms on 5 ranges.
Accuracy : + 0.1 %.
Range Multipliers : There are 5 range multipliers of x 100, x 10, x 1, x 0.1 and x 0.01.
Standard Resistance : 10 coils of 0.1 ohm each are arranged on a rotary dial and a circular slidewire of total resistance
0.1 ohm and of 100 divisions is in series with th1 10 coils. Each division of the slide wire is equal to
0.001 ohm on the normal range.

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