Question

In the following figure represents a balanced Wheatstone bridge circuit. What is the value of x
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Answer 1

Answer:

When the voltage between point 1 and the negative side of the battery is equal to the voltage between point 2 and the negative side of the battery, the null detector will indicate zero and the bridge is said to be “balanced.” The bridge's state of balance is solely dependent on the ratios of Ra/Rb and R1/R2, and is ...

Answer 2

The balanced wheats tone bridge circuit is the value of $x$ $12$Ω.

Explanation:

Here two $2$Ω are in parallel so equivalent resistance $\frac{2}{2}$$=1$Ω

Two $4$Ω are in parallel so equivalent resistance $\frac{4}{2}$ =$2$Ω

two $4$Ω are in series so equivalent resistance $4+4=8$Ω

In the balanced condition, for wheats tone bridge

$\frac{P}{Q} =\frac{R}{S}$

$\frac{4+4}{1} =\frac{4+x}{2}$

$x=12$Ω.