Title: Unit 2 Glossary
Course: ELT 102 Basic Electricity & Wiring > Section: ELT 102 Basic Electricity & Wiring

Unit 2 Glossary

Terms

Term | Definitions
Ion | is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative charge.
Kirchhoff’s current law (KCL) | the current flowing into a node in a circuit is equal to the current flowing away from that point.
Kirchhoff’s Voltage law (KVL) | the algebraic sum of the voltage drops in any closed loop is equal to zero.
Neutron | a subatomic particle forming part of the nucleus of an atom and which has no net electric.
Open Circuit | a discontinuous circuit or path through which no current can flow.
Potential Energy | energy at rest.
Proton | a subatomic particle with a positive elementary electric charge.
Resistance (R) | opposition to current flow,  unit of measure Ohm.
Semiconductor | a material that is neither a conductor or insulator,  a material with four valance electrons.
Short Circuit | a low resistance  path, usually an unintentional condition, that will relust in excessive current flow.
Temperature coefficient | a change in the resistance of a material  that corresponds to a temperature change.
Time (T) | the measured or measurable period during which an action, process, or condition exists or continues, unit of measure seconds.
Valance electron | is the electrons in the outmost shell or orbital ring of an atom.
Valance shell | is the outmost shell or orbital ring of an atom.
Voltage (V) | potential difference, the electrical pressure that causes current to flow. When working with devices it is often referred to as voltage drop.
Watt (W) | the rate of work accomplished when one ampere of current flows when one volt of pressure is applied,  unit of measure for electrical power.