CUET Preparation Today
The Wheatstone bridge is an arrangement of four resistances: $R_1, R_2, R_3, R_4$ as shown in the figure given below. The null-point condition is not given by
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$R_2/R_1 = R_4/R_3$ $R_1/R_2 = R_3/R_4$ $R_1R_4=R_2R_3$ $R_1R_2=R_3R_4$ |
$R_1R_2=R_3R_4$ |
The correct answer is Option (4) → $R_1R_2=R_3R_4$ |
