If the resistances in a Wheatstone bridge are R1, R2, R3, and R4, what is the co
Practice Questions
Q1
If the resistances in a Wheatstone bridge are R1, R2, R3, and R4, what is the condition for balance?
R1/R2 = R3/R4
R1 + R2 = R3 + R4
R1 * R4 = R2 * R3
R1 - R2 = R3 - R4
Questions & Step-by-Step Solutions
If the resistances in a Wheatstone bridge are R1, R2, R3, and R4, what is the condition for balance?
Correct Answer: R1/R2 = R3/R4
Step 1: Understand that a Wheatstone bridge has four resistors: R1, R2, R3, and R4.
Step 2: Recognize that the bridge is balanced when the ratio of the resistances in one branch equals the ratio in the other branch.
Step 3: Write down the ratios: R1 is in one branch with R2, and R3 is in the other branch with R4.
Step 4: Set up the equation for balance: R1 divided by R2 should equal R3 divided by R4.
Step 5: Conclude that the condition for balance is R1/R2 = R3/R4.
Wheatstone Bridge Balance Condition – The Wheatstone bridge is a circuit used to measure unknown resistances by balancing two legs of a bridge circuit. The condition for balance is that the ratio of the resistances in one leg equals the ratio in the other leg.
