Question

What is the main usefulness of a balanced Wheatstone bridge?

Options

• Accurate resistance measurement

• Reducing power consumption

• Increasing voltage in the circuit

• Amplifying weak electrical signals

Answer 1

The main usefulness of a balanced Wheatstone bridge is accurate resistance measurement. When the bridge is balanced and the galvanometer shows zero deflection, the balance condition can be reliably applied to calculate the unknown resistance with high precision.