What happens to the current through the galvanometer when the bridge is balanced?
Practice Questions
1 question
Q1
What happens to the current through the galvanometer when the bridge is balanced?
It increases.
It decreases.
It becomes zero.
It becomes maximum.
When the bridge is balanced, the current through the galvanometer becomes zero.
Questions & Step-by-step Solutions
1 item
Q
Q: What happens to the current through the galvanometer when the bridge is balanced?
Solution: When the bridge is balanced, the current through the galvanometer becomes zero.
Steps: 6
Step 1: Understand what a galvanometer is. It is a device that measures small electric currents.
Step 2: Know what a bridge circuit is. It is a circuit used to measure resistance or to balance voltages.
Step 3: Learn what it means for the bridge to be balanced. This occurs when the ratio of resistances in one part of the bridge equals the ratio in another part.
Step 4: When the bridge is balanced, the voltage across the galvanometer becomes zero.
Step 5: Since the voltage across the galvanometer is zero, no current flows through it.
Step 6: Therefore, when the bridge is balanced, the current through the galvanometer is zero.
