What is the condition for balance of a Wheatstone bridge?

Using Kirchoff's law, derive the condition for the balance of a Wheatstone bridge circuit.

Draw diagram of aWheatstone bridge and by using Kirchhoff’s Laws derive the condition for balance of Wheatstone bridge.

Deduce the conditions for balance in a wheatstone bridge. Using the principle of Wheatstone bridge, describe the method to determine the specific resistane of a wire in the laboratory. Draw the circuit diagram and write the formula used. Write any two important precautions you would observe, while performing the experiment.

What is the condition of resonance?

What is exarch condition?