BE 2350 Chapter : Solutions To Homework 2
Document Summary
3. 1 systematic errors are consistently on 1 side of the correct reading, random errors are perturbations on either side of the correct answer. 3. 7 (a) the question requires the application of th venin"s theorem to the circuit. It is helpful to add labels a, b, c, d to the circuit to aid analysis: For the purpose of calculating the equivalent resistance of the circuit, all voltage sources are replaced by their internal resistance, which can be approximated to zero: Looking first at the circuit to the left of cd, this consists of a series pair of resistors. Looking now at the circuit to the left of ab, this consists of a series pair of resistors ( The effective resistance abr can be calculated as: The equivalent circuit calculated using th venin"s theorem can now be written as: Defining i as the current flowing in the circuit when the measuring instrument is connected to it, we can write:
