To calculate an unknown resistance with the help of a meter bridge why is it advised to change the gap with the known and unknown resistance?

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

Which error of meter bridge is removed when the known and unknown resistances are interchanged?

Explain the determination of unknown resistance using meter bridge.

With the help of circuit diagram explain how a metre bridge can be used to compare two unknown resistances.

A certain unknown resistance is connected in the left gap and a resistance box in the right gap of a metre bridge. By introducing a resistance of 10 Omega with the help of resistance box, the balance point is determined. If the balance point shift by 20 cm on increasing the resistance from the resistance box by 12.5 Omega Find the value of unknown resistance.

In a meter bridge when the resistance in the lift gap, is 2Omega and an unknown resistance in the right gap, the balance point is obtained at 40 cm from Zero end. On shunting the unknown resistance with 2Omega find the shift of the balance point on the bridge.

In a meter bridge when the resistance in the left gap is 4 Omega and an unknown resistance in the right gap the balance point is obtained at 40 cm from the zero end. On shunting the unknown resistance with 4 Omega , find the shift of the balance point on the bridge wire