If the Wheatstone bridge is unbalanced, what can be inferred about the resistanc

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Question: If the Wheatstone bridge is unbalanced, what can be inferred about the resistances?

Options:

Correct Answer: R1/R2 ≠ R3/R4

Solution:

An unbalanced Wheatstone bridge indicates that the ratio of the resistances is not equal.

If the Wheatstone bridge is unbalanced, what can be inferred about the resistances?

If the Wheatstone bridge is unbalanced, what can be inferred about the resistances?

Correct Answer: The ratio of the resistances is not equal.

Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances by balancing two legs of a bridge circuit.
Step 2: Know that the Wheatstone bridge has four resistors arranged in a diamond shape.
Step 3: Recognize that the bridge is considered 'balanced' when the voltage across the middle (between the two legs) is zero.
Step 4: If the bridge is 'unbalanced', it means that the voltage across the middle is not zero.
Step 5: Conclude that an unbalanced bridge indicates that the ratio of the resistances in one leg is not equal to the ratio in the other leg.

Wheatstone Bridge – A circuit used to measure unknown resistances by balancing two legs of a bridge circuit.
Resistance Ratio – In a balanced Wheatstone bridge, the ratio of the resistances in one leg is equal to the ratio in the other leg.