If the resistance in one arm of a Wheatstone bridge is increased, what happens t
Practice Questions
Q1
If the resistance in one arm of a Wheatstone bridge is increased, what happens to the balance condition?
It remains balanced
It becomes unbalanced
It depends on other resistances
It becomes short-circuited
Questions & Step-by-Step Solutions
If the resistance in one arm of a Wheatstone bridge is increased, what happens to the balance condition?
Correct Answer: Balance condition disturb ho jayegi.
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 arranged in a diamond shape with a voltage source and a galvanometer.
Step 3: Know the balance condition. The bridge is balanced when the ratio of the resistances in one arm is equal to the ratio in the other arm.
Step 4: Recognize what happens when you increase the resistance in one arm. This changes the ratio of resistances in that arm.
Step 5: Conclude that increasing the resistance in one arm disturbs the balance condition, making the bridge unbalanced.
Wheatstone Bridge Balance Condition – The balance condition of a Wheatstone bridge occurs when the ratio of resistances in one arm equals the ratio in the other arm, allowing for no current to flow through the galvanometer.
Effect of Resistance Change – Changing the resistance in one arm alters the ratio of resistances, thus affecting the balance condition.
