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If the Wheatstone bridge is unbalanced, what happens to the current through the
If the Wheatstone bridge is unbalanced, what happens to the current through the galvanometer?
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Practice Questions
1 question
Q1
If the Wheatstone bridge is unbalanced, what happens to the current through the galvanometer?
It becomes zero.
It increases.
It decreases.
It becomes infinite.
Show Solution
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In an unbalanced bridge, there is a potential difference across the galvanometer, causing current to flow.
Questions & Step-by-step Solutions
1 item
Q
Q: If the Wheatstone bridge is unbalanced, what happens to the current through the galvanometer?
Solution:
In an unbalanced bridge, there is a potential difference across the galvanometer, causing current to flow.
Steps: 6
Show Steps
Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances.
Step 2: Know that the Wheatstone bridge has four resistors and a galvanometer (a device that measures current).
Step 3: Recognize that when the bridge is balanced, there is no current flowing through the galvanometer.
Step 4: Learn that when the bridge is unbalanced, the resistances are not equal, which creates a difference in voltage.
Step 5: This difference in voltage across the galvanometer causes current to flow through it.
Step 6: Conclude that in an unbalanced Wheatstone bridge, the current through the galvanometer increases.
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