# Circuits Vocabulary Flashcards

Terms Definitions
 Branch ... resistor symbol ... Repel to push away series circuit diagram ... Electrons negatively charged subatomic particles p power, watts = joule/second p=dw/dt p=v*i for resistors, p=(i^2)r=(v^2)/r Voltage Potential Difference. Between two points on a circuit it is the difference in energy level for a unit charge devices or components individual circuit elements Current The movement of positive particles. The change in charge per unit time. Batteries and generators suppy The charge carriers capacitive reactance opposition of capacitance to alternating current ___ ___ pushes electric charges through a closed circuit Engery Source Loop Closed path ending at the starting node Batteries and generators set up A potential difference skin effect the phenomenon at high frequencies which causes current to move to the outside surface of conductors open circuit an incomplete electrical circuit in which no current flows Lightning A discharge of electrons form a cloud to another cloud or form a cloud to the surface of the earth physical layout A diagram that shows the actual arrangement of elements in a circut-like a photograph linear circuit a circuit whose output is linearly related to its input common-emitter (CE) a BJT amplifier configuration in which the emitter is the common terminal to an ac signal or ground Voltage-controlled voltage source V = V(s)*K (constant) [+/- diamond] passive devices do not require an external power source in order to operate (resistor, capacitor, inductor) Ohm's law relates ___ ___ and ___ current, resistance, voltage An example of a resistor in an electric circuit is a ___ light bulb Electric Charge charge obtained by an object when it gains or loses electrons saturation the state of a BJT in which the collector current has reached a maximum and is independent of the base current Once they reach maximum flow the electric potential is reduced , return to zero and reverse motion. is an example of? Alternating current (AC) parallel A circuit or a section of a circuit in which current can split and take different paths. The voltage drop across each path is the same. decoupling network a low pass filter that provides a low impedence path to ground for high frequency signals A break anywhere in the path results in an open circuit and the flow of electrons ceases. A series circuit Battery (voltage source) What is this? (What is it also known as?) electron drift velocity vs. transmission velocity drift velocity is pretty slow, whereas transmission velocity approaches the speed of light What is a circuit loop. A closed path beginning at a node, traveling through one or more elements and returning to the same starting mode without crossing itself. A charge moves _____ when it moves through a potential difference creating a Randomly , an electric field which creates an electric force setting charges in motion
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