Electric circuit analogy

Electricity is an analogy that provides a way of helping students develop a real understanding of simple electric circuits. A current source becomes a force generator, and a voltage source becomes an input velocity. DC Circuit Water Analogy This is an active graphic. Click any part of it for further details. Sources must also be transformed. In a direct current (DC) electrical circuit, the voltage (V in volts) is an expression of the available energy per unit charge which drives the electric current (I in amperes) around a closed circuit. As other answers have mentioned, the water analogy does tend to work well, especially in describing transistors and how the gate current can control the base-collector current. To apply this analogy, every node in the electrical circuit becomes a point in the mechanical system. This interactive resource is provided by the Association for Science Education (ASE). The analog of is current, and the analog of the temperature difference, , is voltage difference. For example, explain that electricity is like a train on a train track, and that it requires the circuit to be continuous for the train to go all the way around. Such abstract concepts can be explained using analogies "#"\$ across an element is defined as the ratio of electric potential difference Δ& across that element, to electric current I traveling through that element, according to Ohm’s law, ! Using analogies will help children understand the … Heat exchanger networks are analyzed by thermal circuits with circuitous philosophy. 4 Thermal Resistance Circuits There is an electrical analogy with conduction heat transfer that can be exploited in problem solving. This is best illustrated with an example. Sometimes calculating parameters and behaviour of some objects may be much easier when using analogy to objects with well developed theory and calculation methodology. Thermal-electrical analogy: thermal network 3.1 Expressions for resistances Recall from circuit theory that resistance ! Equivalent thermal circuits for heat exchanger networks are depicted. Electrical analogy for analysis and optimization of heat exchanger networks is introduced. If the track/circuit is broken at any point, the train can't continue, and the circuit won't work. Electric circuitry is a key component of the National Curriculum, particularly from ages 14, Key Stages 4 onwards. Ground becomes a fixed location, resistor become friction elements, capacitors become masses and inductors become springs. 16. However this is a difficult concept to teach because it of its abstract nature. Electric circuits analogy to water pipes. ScienceProg Electronics Tutorial.