A deflection in the galvanometer indicates that the bridge is unbalanced, meaning the ratios of the resistances are not equal.

Zero deflection indicates that no current flows through the galvanometer.

Zero deflection in the galvanometer indicates that the bridge is balanced.

Using the balance condition R1/R2 = R3/R4, we find R4 = (R2 * R3) / R1 = (10 * 15) / 5 = 30Ω.

For the bridge to be balanced, the ratios must be equal. Thus, 2/3 should equal 4/5, which is not true.

The bridge is unbalanced because the ratios 2:3 and 4:5 are not equal.

The bridge is unbalanced because the ratios of the resistances do not match.

When R1/R2 = R3/R4, the bridge is balanced, meaning no current flows through the galvanometer.

When R1/R2 = R3/R4, the bridge is balanced, meaning no current flows through the galvanometer.

When R1/R2 = R3/R4, the bridge is balanced, meaning no current flows through the galvanometer.

For a Wheatstone bridge to be balanced, the ratio of the resistances must be equal. Here, 2/3 is not equal to 4/5.

Increasing resistance P will disturb the balance condition, making the bridge unbalanced.

Decreasing R2 will disturb the balance condition, causing the bridge to become unbalanced.

Doubling R2 will change the ratio R1/R2, thus unbalancing the bridge.

Adjusting R4 to achieve balance implies that the other resistances maintain a specific ratio.

The bridge is not balanced because 1/2 is not equal to 3/6.

Using the balance condition P/Q = R/S, we find S = (Q*R)/P = (10*15)/5 = 30Ω.

For balance, R4 must be 6Ω since 2/3 = 4/6.

In a balanced Wheatstone bridge, the voltage divides equally across the two arms, so each arm would have 6V if the total is 12V.

When the Wheatstone bridge is balanced, the current in the galvanometer becomes zero.

When the bridge is balanced, the current through the galvanometer becomes zero.

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

When the Wheatstone bridge is balanced, the potential difference across the galvanometer is zero, resulting in zero current through it.

When the Wheatstone bridge is perfectly balanced, the current through the galvanometer is zero.

When the Wheatstone bridge is balanced, the potential difference across the galvanometer is zero, resulting in zero current.

If the resistances are made equal, the sensitivity of the Wheatstone bridge becomes infinite, as even a small change will cause a large deflection.

When the Wheatstone bridge is balanced, the total resistance is at a minimum for the given configuration.

The condition for a Wheatstone bridge to be balanced is R1/R2 = R3/R4.

The condition for balance is R1/R2 = R3/R4.

In a Wheatstone bridge, the bridge is in equilibrium when the ratio of the resistances in one branch is equal to the ratio in the other branch, i.e., R1/R2 = R3/R4.