What is the value of unknown resistance R, if galvonometer shows null delection in the given meter bridge shows null deflection in the given meter bridge set up?

What is the value of unknown resistance R, if galvonometer shows null deflection in the given meter bridge set up?

Explain the determination of unknown resistance using meter bridge.

To find value of unknown resistance by using meter bridge why position of R and S is interchanged ?

In the meter bridge circuit shown in figure . Find the length AB for null deflection in galvaometer .

Shown in the figure below is a meter- bridge set up will null deflection in the galvanometer. The value of the unknown resistor R is

Shown in the figure below is a meter- bridge set up will null deflection in the galvanometer. The value of the unknown resistor R is

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistance in each gap is shunted by a resistance of 8 Omega .