In a practical Wheatstone bridge, what is the effect of temperature on the resis

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Question: In a practical Wheatstone bridge, what is the effect of temperature on the resistors?

Options:

Correct Answer: It can change resistance values

Solution:

Temperature changes can affect the resistance values of the resistors, thus affecting the balance condition.

In a practical Wheatstone bridge, what is the effect of temperature on the resistors?

In a practical Wheatstone bridge, what is the effect of temperature on the resistors?

Step 1: Understand that a Wheatstone bridge is a circuit used to measure resistance.
Step 2: Know that resistors are components that resist the flow of electric current.
Step 3: Recognize that the resistance of a resistor can change with temperature.
Step 4: Realize that if the temperature increases, the resistance of some materials may increase or decrease depending on the type of material.
Step 5: Understand that if the resistance values change, the balance of the Wheatstone bridge can be affected.
Step 6: Conclude that temperature changes can lead to inaccurate measurements in the Wheatstone bridge.

Temperature Coefficient of Resistance – The change in resistance of a material with temperature, which can lead to imbalance in a Wheatstone bridge.
Wheatstone Bridge Balance Condition – The condition where the ratio of resistances in the bridge leads to zero voltage across the galvanometer.