The Wheatstone bridge is an arrangement of four resistances, say $R_1, R_2, R_3$ and $R_4$. The null point condition is given by: |
$R_1/R_2=R_3/R_4$ $R_1+R_2=R_3+R_4$ $R_1-R_2=R_3-R_4$ $R_1×R_2=R_3×R_4$ |
$R_1/R_2=R_3/R_4$ |
The correct answer is Option (1) → $R_1/R_2=R_3/R_4$ In a Wheatstone Bridge, the null point (Balanced point) is achieved when, $\frac{R_1}{R_2}=\frac{R_3}{R_4}$ |