NCATT AET Questions and Answers Already Passed Direct current is defined as the flow of electrons in one direction throughout a circuit with constant voltage and current
Faraday's Law current will flow in a circuit provided there is electrical difference in potential and there is a path for it to ...
NCATT AET Questions and Answers Already Passed Direct current is defined as ✔✔the flow of electrons in one direction throughout a circuit with constant voltage and current Faraday's Law ✔✔current will flow in a circuit provided there is electrical difference in potential and there is a path for it to flow Loads slow current by ✔✔applying resistance Current flows from ✔✔negative to positive Atoms ✔✔represent the smallest elements that exist in nature Atoms are made up of ✔✔protons, neutrons and electrons Nucleaus ✔✔center of the atom Electrons travel ✔✔at the speed of light Protons ✔✔positively charged subatomic particles Protons contain ✔✔a positive electrical potential Protons positive charge ✔✔affect the orbits of the electrons Neutrons are ✔✔neutral subatomic particles Neutrons are not involved ✔✔in the conduction of electricity Electron's charge ✔✔is negative The speed of rotation combined with electrical potential ✔✔keeps the electrons in their orbits The attraction of opposite charges ✔✔holds the electron in its orbit Conductors ✔✔easily permit the movement of electrons from an electrical source to a load and back to the electrical source with a minimum of resistance First two inner orbits ✔✔make up the atomic number for the element During conductance an extra valence electron ✔✔flows into the next atoms valance orbit Good conductors ✔✔Only those elements that dont hang on to their valence electrons Good Insulators ✔✔Elements that don't give up valance electrons no matter what force is applied lators ✔✔a material or device used to prevent the passage of heat, electricity or sound from one medium to another Examples of insulators ✔✔Glass, Mica, Silica Air ✔✔can be a good insulator but will spark when enough electrical force is applied Static Electricity ✔✔an electr ical charge that may be built up on a non -conductive surface by friction Static electricity serves ✔✔no useful purpose in aviation and cost millions of dollars in damage every year Voltage ✔✔electric potential energy per unit charge measured in joules pe r coulomb Coulomb ✔✔basic unit of electrical quantiy Coluomb is equal to ✔✔6.28 billion -billion electrons Coluomb is the ✔✔actual count of electrons in a unit of measure Joule ✔✔amount of electrons in a suspended state as compared to some electrons in an adjacent part of the circuit
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