Question

For measurement of mutual inductance we can use

• A. Anderson bridge
• B. Maxwell's bridge
• C. Heaviside bridge
• D. Wheat stone bridge

Hint:

Remember the classification of AC bridges:
Self-Inductance: Maxwell, Hay, Anderson, Owen.
Mutual Inductance: Heaviside, Campbell.
Capacitance: Schering, De-Sauty.
Frequency: Wien.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question asks to identify the AC bridge that is specifically designed and used for measuring mutual inductance.

Step 2: Detailed Explanation:

• Let us evaluate each of the bridges listed:

• Anderson Bridge: An AC bridge used for the precise measurement of self-inductance in terms of standard capacitance.

• Maxwell's Bridge: Used for measuring self-inductance of medium-Q coils in terms of a standard capacitance.

• Heaviside Bridge: An AC bridge specifically designed to measure mutual inductance in terms of known self-inductance values. A modified version, the Heaviside-Campbell bridge, is also widely used for the same purpose.

• Wheatstone Bridge: A DC bridge used exclusively for measuring medium-range electrical resistance.

• Since the Heaviside bridge uses the mutual inductance of a pair of coils to balance the inductive voltage drops in its arms, it is the correct choice for measuring mutual inductance.

Step 3: Final Answer:
The Heaviside bridge is used for the measurement of mutual inductance.