In a Wheatstone bridge, if the resistance R2 is decreased, what effect does it have on the balance condition?

1 question

1 item

Q: In a Wheatstone bridge, if the resistance R2 is decreased, what effect does it have on the balance condition?

Solution: Decreasing R2 will disturb the balance condition, causing the bridge to become unbalanced.

Steps: 5

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: Identify the components of the Wheatstone bridge. It has four resistors: R1, R2, R3, and R4.
Step 3: Know the balance condition. The bridge is balanced when the ratio of R1 to R2 is equal to the ratio of R3 to R4.
Step 4: Recognize what happens when R2 is decreased. If R2 becomes smaller, the ratio of R1 to R2 changes.
Step 5: Determine the effect on balance. Since the ratio of R1 to R2 is no longer equal to the ratio of R3 to R4, the bridge becomes unbalanced.