im currently working on a project that requires the construction of a wheatstone bridge connected to an op amp(LM 358). the gain of the op amp is to be 20times with R1=R2=22K, R3=R4=220K. I understand that the Vout is calculated by the (+) and (-) signal from the wheatstone bridge. I need to know what are the values for the resistors(R1, R2,R3,R4) on the wheatstone bridge.would appreciate all help. thanks!