NCATT - Basic DC electrical terms
What part of an atom ia associated with the flow of electricity? - answer The electrons
located in the outer orbits of atoms are associated with current flow.
What in electrons in a conductor determines whether its flow is poor or good? -
answerWhether or not there contains free electrons in the orbits of the atoms
Define Static Electricity? - answer Static electricity is a difference of electrical charge
between two non conductive surfaces
What term is used to express the flow of electricity? - answer Amperes is the amount of
current flowing past a particular point in the circuit
Define Coulomb - answerA basic unit of electrical quantity equil to 6.28x10 to the 18th
power or 6.28 billion -billion electrons
What is the basic unit of electrical pressure? What other names could it go by? -
answerElectron motive force (EMF) or volts
If voltage and resistance are known, describe how total current can be determined.
Show the equation. - answerTo determine the current in a circuit Voltage is devided by
resistance I=E/R
What device other than an actual battery can be used to store energy? - answerA
Capacitor
Describe the left hand rule as it pertains to electrical generation. - answerThis describes
the flow of current in a conductor when passed through magnetic lines of flux. The
thumb represents the motion of the conductor, the index finger represents the lines of
flux of the maxnetic field, and the middle finger is the resultant current flow
What trait would allow magnetic lines of flux to flow easily? - answerThe ease of which
the lines of flux follow the material is determined by the permeability of the material that
the lines of flux are directed to flow through
Describe the name of a common electrical point that allows circuits to have a return
path to power - answerTo save wires all return paths to the negative electrical potential
by using an earth or chasis ground
What will have the effect of slowing current, a large or small amount of resistance? -
answerA larger amount of resistance will slow the rate of current flow.
What part of an atom ia associated with the flow of electricity? - answer The electrons
located in the outer orbits of atoms are associated with current flow.
What in electrons in a conductor determines whether its flow is poor or good? -
answerWhether or not there contains free electrons in the orbits of the atoms
Define Static Electricity? - answer Static electricity is a difference of electrical charge
between two non conductive surfaces
What term is used to express the flow of electricity? - answer Amperes is the amount of
current flowing past a particular point in the circuit
Define Coulomb - answerA basic unit of electrical quantity equil to 6.28x10 to the 18th
power or 6.28 billion -billion electrons
What is the basic unit of electrical pressure? What other names could it go by? -
answerElectron motive force (EMF) or volts
If voltage and resistance are known, describe how total current can be determined.
Show the equation. - answerTo determine the current in a circuit Voltage is devided by
resistance I=E/R
What device other than an actual battery can be used to store energy? - answerA
Capacitor
Describe the left hand rule as it pertains to electrical generation. - answerThis describes
the flow of current in a conductor when passed through magnetic lines of flux. The
thumb represents the motion of the conductor, the index finger represents the lines of
flux of the maxnetic field, and the middle finger is the resultant current flow
What trait would allow magnetic lines of flux to flow easily? - answerThe ease of which
the lines of flux follow the material is determined by the permeability of the material that
the lines of flux are directed to flow through
Describe the name of a common electrical point that allows circuits to have a return
path to power - answerTo save wires all return paths to the negative electrical potential
by using an earth or chasis ground
What will have the effect of slowing current, a large or small amount of resistance? -
answerA larger amount of resistance will slow the rate of current flow.
