CFESA ELECTRIC QUESTIONS &
ANSWERS(GRADED A+)
Voltage - ANSWER Potential difference or driving force of electrons between two lines
Current - ANSWER Measured in amps. Movement of electrons through a circuit when a
difference of potential exists.
Direct current (DC) - ANSWER Circuit electrons flow in only one direction from negative
to positive.
Frequency - ANSWER (Hertz) number of times the alternating current changes from 0
to its peak positive then zero to peak negative then back to zero.
Power - ANSWER Amount of energy used. Determined by voltage, current, and
resistance in a circuit.
Series-Parallel Circuit - ANSWER Combination of series and parallel circuits.
Continuity - ANSWER Continuous or or unbroken path for current to flow.
short circuit - ANSWER Accidental connection of lower resistance within a circuit.
Dead Short - ANSWER Hot touches ground or two hot lines touch.
Safety ground - ANSWER External path to ground from an enclosure of an electrical
device. Used to protect people.
DC Power - ANSWER direct current
unbalanced load - ANSWER Current is not the same on all the lines.
Kirchoff's Current Law - ANSWER The current that goes into a branch is equal to the
current that comes out of a branch.
Resistance - ANSWER Impedance or opposition to the flow of current. Measured in
Ohms. Every circuit must have resistance.
Circuit - ANSWER a path for an electrical current to flow around
Series circuit - ANSWER An electric circuit with a single path. (Castle wall)
Parallel circuit - ANSWER A circuit that contains more than one path for current flow.
(Parachute)
ANSWERS(GRADED A+)
Voltage - ANSWER Potential difference or driving force of electrons between two lines
Current - ANSWER Measured in amps. Movement of electrons through a circuit when a
difference of potential exists.
Direct current (DC) - ANSWER Circuit electrons flow in only one direction from negative
to positive.
Frequency - ANSWER (Hertz) number of times the alternating current changes from 0
to its peak positive then zero to peak negative then back to zero.
Power - ANSWER Amount of energy used. Determined by voltage, current, and
resistance in a circuit.
Series-Parallel Circuit - ANSWER Combination of series and parallel circuits.
Continuity - ANSWER Continuous or or unbroken path for current to flow.
short circuit - ANSWER Accidental connection of lower resistance within a circuit.
Dead Short - ANSWER Hot touches ground or two hot lines touch.
Safety ground - ANSWER External path to ground from an enclosure of an electrical
device. Used to protect people.
DC Power - ANSWER direct current
unbalanced load - ANSWER Current is not the same on all the lines.
Kirchoff's Current Law - ANSWER The current that goes into a branch is equal to the
current that comes out of a branch.
Resistance - ANSWER Impedance or opposition to the flow of current. Measured in
Ohms. Every circuit must have resistance.
Circuit - ANSWER a path for an electrical current to flow around
Series circuit - ANSWER An electric circuit with a single path. (Castle wall)
Parallel circuit - ANSWER A circuit that contains more than one path for current flow.
(Parachute)
