Electrical Engineering · Network Theory

In a balanced Wheatstone bridge circuit, the four arms have resistances arranged sequentially as R1 = 2 Ω, R2 = 4 Ω, R3 = 5 Ω, and RL (detector arm). If the current through the detector resistance RL is zero, determine the value of the balancing resistor connected opposite to R1 in the standard bridge formulation, which gives the ratio relation.