Reading time: 5 mins
In this prelab, we discuss how to identify faults in a given circuit.
In Lab10 A, we observed that different faults can cause dramatic changes in the resistance measurements. In Lab10 B, we will do something opposite to lab10A. You need to identify faults in a given circuit, the faults can be open circuit, short circuit, or a hidden resistor with different values. Diagnosis of faults requires a logical and disciplined approach. First, observe the given circuit, draw schematics, and estimate the possible measurements between different terminals. Secondly, use Multimeter to measure resistance between different terminals, compare the measurements with your estimation, and use Multimeter to check whether there are any short circuits. Thirdly, make logic assumption about any fault in certain position. Based on the assumption, estimate the values between terminals and compare with measurements again. Repeat this process until the measurements are close to the estimations.
