To study the Kelvin Double Bridge for Low resistance measurement            

A kelvin bridge is balanced with the following constants: outer ratio arm 100Ω and 1000Ω : inner arms, ratio 99.92Ω and 1000.6Ω resistance of link 0.1Ω ; standard resistance 0.00377Ω. calculate the value of unknown resistance

The ratio arms of a kelvin bridge are 100 each. The galvanometer has an internal resistances of 500Ω and current sensitivity of 200 mm/uA. the unknown resistances is 0.1002Ω and the standard resistances is set at 0.1000Ω. A d.c current of 10Amp is passed through the standard and unknown resistances from a 2.2 v battery in series with a rheostat. Calculate the deflection of the galvanometer

The device which prevents the oscillation of the moving system and enables the latter to reach its final position quickly is

A moving-coil parmanent-magnet instrument with a low resistance shunt can be used as what?

A moving-coil parmanent-magnet instrument can be used as flux-meter