Question

When a battery is connected between the terminals P and Q, as shown in Figure below, it is found that no current flows through 5Ω resistor. Then, the value of resistor X is:

पर्याय

• 10Ω

• 20Ω

• 25Ω

• 45Ω

Answer 1

25Ω

Explanation:

Since no current flows through the 2 to 5Ω resistors, it forms a balanced Wheatstone bridge.

∴ `25/X = 10/10`

X = 25Ω