If the supply voltage in a Wheatstone bridge is increased, how does it affect the balance condition?
Practice Questions
1 question
Q1
If the supply voltage in a Wheatstone bridge is increased, how does it affect the balance condition?
It does not affect the balance condition
It makes the bridge unbalanced
It increases the current in the circuit
It decreases the resistance
Increasing the supply voltage does not affect the balance condition; it remains dependent on the resistance ratios.
Questions & Step-by-step Solutions
1 item
Q
Q: If the supply voltage in a Wheatstone bridge is increased, how does it affect the balance condition?
Solution: Increasing the supply voltage does not affect the balance condition; it remains dependent on the resistance ratios.
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: Know that the balance condition in a Wheatstone bridge occurs when the ratio of the resistances in one leg is equal to the ratio in the other leg.
Step 3: Recognize that the balance condition is given by the formula: R1/R2 = R3/R4, where R1 and R2 are resistances in one leg, and R3 and R4 are resistances in the other leg.
Step 4: Realize that increasing the supply voltage means you are providing more electrical energy to the circuit, but it does not change the values of the resistances.
Step 5: Conclude that since the balance condition depends only on the ratios of the resistances (R1/R2 and R3/R4), increasing the supply voltage does not affect the balance condition.
