Question

A Kelvin Bridge schematic is shown in Figure P4.7. At null, Vk-Vp R1 R. Ry Null Detector Ri Rx FIGURE P4.7 (A) Find expressions for Vk, Ix and lab (B) Derive an expression for Rx at null (note that it has two terms). (C) At null: Ra 1000.6 S2. Calculate Rx using the simple first term in the equation of part B). Calculate Rx using the whole expression from B). R,-100.0 Ω, R2-1000 Ω, R-0.1000 Ω, R3-0.00377 Ω, Rb-99.2 Ω, D) Calculate Ix assuming VB-1.500 V. Find the power dissipated in Rx

Answer 1