Draw a circuit diagram of a meter bridge used to determine the unknown resistance R of a given wire. Hence derive the expression for R in terms of the known resistance S.

With the help of circuit diagram, explain how a meter bridge can be used to find unknown resistance of a given wire?

Draw the circuit diagram for wheatstone bridge to determine unknown resistance. Write condition for balancing of the bridge.

With the help of a circuit diagram, explain the working principle of a metre bridge. How is it used to determine the unknown resistance of a given wire? Write the necessary precautions to minimise the error in the result?

Explain with a neat circuit diagram how will you determine unknown resistance 'X' by using meter bridge.

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

With an unknown resistance X in the left gap and a resistance R in the right gap of a meter bridge, the neutral point is obtained at a distance of 75cm from the left end. The shift of null point if the unknown resistance is shunted by an equal resistance X and keeping same resistance in right gap is