Understanding Electrical Circuits: Parallel/Series Connections, Ohm's Law, and Power - Pro, Study notes of Electrical and Electronics Engineering

Download Understanding Electrical Circuits: Parallel/Series Connections, Ohm's Law, and Power - Pro and more Study notes Electrical and Electronics Engineering in PDF only on Docsity! lecture 1 outline 1-1 Circuit Analysis Circuits are formed when circuit elements (resistors, etc.) are connected together. Two common ways for elements to be connected are parallel and series. Elements in parallel share both nodes (and so have a common voltage). Elements in series have share one node that is shared by no other element (and so have a common current). Is parallel and series the only ways in which elements can be connected? lecture 1 outline 1-2 Resistor Combinations, Ohm’s Law, Power Series Parallel Ohm’s Law Power Examples Consider the circuit shown below. The resistors could be lights, heaters, motors etc. 1. Suppose identical 100 Ω resistors A, B, and C are connected to the DC voltage supply as shown. i) Which resistor(s) dissipates the most power? ii) Which resistor(s) draws the most current? iii) What happens to the power dissipated in A and B when C is removed (that is, when C is replaced by an open circuit)? iv) What happens to the power dissipated in B and C if A is removed? lecture 1 outline 1-5 Breadbording Circuit 1 (adjust voltage to 5V) Using digital multimeter (DMM) to measure voltages and currents lecture 1 outline 1-6 Breadbording Circuit 4 (adjust voltage to 6V)