What is the primary use of a Wheatstone bridge in practical applications?

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Question: What is the primary use of a Wheatstone bridge in practical applications?

Options:

Correct Answer: To measure resistance

Solution:

The primary use of a Wheatstone bridge is to measure unknown resistances by balancing it against known resistances.

What is the primary use of a Wheatstone bridge in practical applications?

What is the primary use of a Wheatstone bridge in practical applications?

Correct Answer: Wheatstone bridge ka primary use unknown resistances ko measure karna hai.

Step 1: Understand that a Wheatstone bridge is a circuit used to measure electrical resistance.
Step 2: Know that it consists of four resistors arranged in a diamond shape.
Step 3: Recognize that two of the resistors have known values (these are the reference resistors).
Step 4: Identify that one resistor has an unknown value (this is the resistor we want to measure).
Step 5: Learn that the bridge is balanced when the ratio of the known resistors is equal to the ratio of the unknown resistor and the other known resistor.
Step 6: Use a galvanometer to detect when the bridge is balanced (when there is no current flowing through it).
Step 7: Calculate the unknown resistance using the known values and the balanced condition of the bridge.

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