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NCATT AET STUDY GUID

Direct Current BASIC TERMS

QuestionAnswer
Unit of measurement used to express the flow of electrons. Ampere
What is the the rate of flow of one coulomb per second. 6.28 Billion
In a mathematic problem amperage is express by the letter I
A device consisting of a number of primary voltaic cells Battery
What device stores chemical energy and makes it available in an electrical form Battery
What is the general storage rating for an aircraft battery 12 or 24 Volts
An Electrical component used to store electrical energy in the form of an electrostatic field. Capacitor
A device that is made of two parallel conductors separated by an insulator Capacitor
A Basic unit of electrical quantity Coulomb
What electrical quantity is equal to 6.28 billion electrons Coulomb
What is the flow of electrons through a conductor . Current
What rate of flow is measured in amperes. Current
What type of current flows in one direction throughout a circuit with a constant voltage. Direct Current
What is caused by a constant difference of both negative and positive potential. Direct Current
Negatively charged subatomic particles that travel around a nucleus. Electron
What is the speed of light 186,000 miles / second
What is involved in the conduction of electricity Electrons
What is the force that causes electrons to flow through a conductor. Electromotive Force
E.M.F Electromotive Force
What is the unit of measurement for electromotive force. Volt
What letter in voltage expressed as in a mathematical problem. E
What is the basic unit of capacitance Farad
What is the basic unit of measurement for induction of an electrical coil. Henry
In a mathematical problem induction is expressed by what Letter L
What is a coil or other device used to introduce inductance into a circuit. Inductor
An inductor consist of multiple coils of Wire
A material or device that prevents the passage of heat , electricity, or sound form one medium to another Insulator
Electrical generators are referred to as Left-hand Rule
This rule is used to determine the direction of movement of a current carrying conductor in a magnetic field Left-hand Rule
The measure of ease that lines of flux travel through a material Magnetic permeability
The ability of a magnet to attract certain materials that contain iron and influences electrons Magnetism
What is the principal wat to effectively produce ac electricity Magnetism
A Measurements relating or using the metric system of measurement Metric prefixes
Neutral subatomic particles that exist withing the nucleus of all atoms Neutron
What subatomic particles are not involved in the conduction of electricity Neutron
Unit of electrical opposition the the flow of current Ohm
" The amount of current flowing in a circuit is directly proportional to the circuit voltage and inversely proportional to the circuit resistance" Ohms Law
One volt causes one ampere to flow though a resistance of one ohm Ohms Law
Positively charged subatomic particles that exist with the nucleus of all atoms Protons
What subatomic particles are not involved in the conduction of electricity Protons
Electrical characteristics of a conductor Resistance
Opposition that a substance presents to the flow of electricity Resistance
What is the force that opposes or slows down another force, drops voltage and consumes power. Resistance
Resistance is measured in. Ohms
In a mathematical problem ohms of resistance is expressed with the letter R
A number between 1 and 10 multiplied by 10 to the appropriate power. Scientific Notation
An electrical charge that may build up on non conductive surface by friction Static Electricity
What serves no real purpose Static Electricity
Basic unit of electrical pressure Volt
the amount of force required to cause on amp of current to flow through on ohm of resistance Volt
What is often expressed as voltage, voltage drop, potential difference, EFR or IR drop Volt
Basic unit of power that is the product of voltage multiplied by current Watts
Maximum amount of DC voltage that can be safely applied across a capacitor Working Voltage
Created by: Seven1911
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