The slidewire Wheatstone bridge shown in Fig. 28-20 is balanced (refer back to Problem 28.36) when the

Question:

The slidewire Wheatstone bridge shown in Fig. 28-20 is balanced (refer back to Problem 28.36) when the uniform resistive slide wire AB is divided as shown. Find the value of the resistance X. A X L 40 cm D G N=3Q M 60 cm Fig. 28-20 B

Problem 28.36

The Wheatstone bridge shown in Fig. 28-19 is being used to measure resistance X. At balance, the current through the galvanometer G is zero and resistances L, M, and N are 3.0 Ω, 2.0 Ω, and 10 Ω, respectively. Find the value of X. a 12 X b G Wo d IL 12 Fig. 28-19 N M