Explain the principle of Wheatstone bridge for determining and unknown resistance. How is it realised in actual practice in the laboratory?

What is the principle of Wheatstone bridge for determining an unknown resistance ? How is it realised in actual practice in the laboratory?

Discuss a practical form of a Wheatstone's Bridge to find an unknown resistance.

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 a slide wire bridge? How can you find unknown resistance by it?

Name two practical applications of Wheatstone bridge?

Define a black body and explain how it can be realised in practice.