What happens to the current through the galvanometer when the Wheatstone bridge

₹0.0

Question: What happens to the current through the galvanometer when the Wheatstone bridge is unbalanced?

Options:

Correct Answer: It increases

Solution:

When the Wheatstone bridge is unbalanced, there is a non-zero potential difference across the galvanometer, causing current to flow through it.

What happens to the current through the galvanometer when the Wheatstone bridge is unbalanced?

What happens to the current through the galvanometer when the Wheatstone bridge is unbalanced?

Correct Answer: Current flows through the galvanometer.

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 arranged in a diamond shape.
Step 3: Realize that the galvanometer is connected between the two midpoints of the bridge.
Step 4: When the bridge is balanced, the potential difference across the galvanometer is zero, so no current flows through it.
Step 5: When the bridge is unbalanced, the resistances are not equal, creating a difference in voltage between the two midpoints.
Step 6: This difference in voltage causes a current to flow through the galvanometer.

No concepts available.