Electrostatic & Electrodynamics Flashcards
study of stationary electric charges
electrostatic
two types of electric charge
cations and anions
positively charge ions results from the loss of electrons
cations
negatively charge ions results from the gain of electrons
anions
it is the process of adding or removing electrons from an object
electrification
three types of electrification
contact, friction and induction
in three types of electrification, it is a connection that causes the flow electrons
contact
in three types of electrification, it is a buildup of electron caused by rubbing of object together
friction
in three types of electrification, using the electric field of a charged object to confer a charge on an uncharged object
induction
it is the build up of electric charges
static electricity
it is called when an object that has too few or too many electrons
electrified
4 Laws under Electricity
electrostatic law
coulumb’s law
electric charge distribution
electrified charge concentration
unlike charges attract ; like charges repel
electrostatic law
it is when electrostatic force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
coulumb’s ;aw
it is when an object become electrified, the electrical charges are distributed throughout the object such as thunder cloud
electric charge distribution
it is when electric charges are concentrated along the sharpest curvature of the surface such as electric cattle rod
electrified charge concentration
it is the stored energy and it has the ability to work when the energy is released
its unit is volt (V)
sometimes termed as electromotive force (EMF) or voltage
electric potential
it is the study of charges in motion
electrodynamics
four electrical state of matter
conductors, insulators, semiconductors and superconductivity
in four electrical state of matter, it is a matter through which electrons flow easily like copper, aluminum and water
conductors
in four electrical state of matter, it is a matter that inhibits the flow of electrons like glass, clay and earth like material
insulators
in four electrical state of matter, it is a matter that under some conditions behaves as an insulator or act as a conduction like silicon and germanium
semiconductors
in four electrical state of matter, it is the property of limited resistance to electron flow below critical temperature that allows the flow of electron without any resistance
superconductivity
it is the result when the resistance is controlled and the electron flow over a closed path
electic circuit
electric current are measured in ___
ampere (A)
electric potential is measured in ___
volt (V)
it is the law that states that the voltage across the total circuit or any portion of the current is equal to the current times the resistance
ohm’s law
it is the opposition to the flow of an electric current, producing heat
the greater the ____, the less current gets through
resistance
two types of electric circuits
series and parallel
two types of currents
direct and alternating
it is a type of current where electrons flowing in one direction along the conductor where electrons flow in the same direction in a wire
direct current
it is a type of current where electrons oscillates back and forth electrons flow in different directions in a wire
alternating current
electric power is measured in ___
watts (W)
