M.E.C.P. EXAM FINAL STUDY GUIDE 2026
VERIFIED QUESTIONS AND ANSWERS
a difference of electrical potential Or charge between two points is measured in - ANSWER-Volts
The Difference of potential in a battery is... - ANSWER-voltage that forces electrons to move
In Ohm's Law, the pRoperty of voltage is often symbolized as... - ANSWER-E
Voltage is really... - ANSWER-Electronic force
In ohms law, voltage is represented by either... - ANSWER-V or E
Current is the movement or flOw of... - ANSWER-Free electrons through a conductor
The way current is measured is in units called... - ANSWER-Amps or Amperes
6.24x10^18 is known as a... - ANSWER-Coulomb
Free electrons moving from one ion to the next is... - ANSWER-How Current flows
Voltage is a charge between... - ANSWER-Two points
What are two types of electrical current? - ANSWER-AC AND DC
Periodically reverses direction of electrons flowing "back and forth" - ANSWER-AC
AlwAys flows in one direction - ANSWER-DC
Has both amplitude component "how much" and frequency component "How often" -
ANSWER-AC
Changes periodically from positive to negative at a certain rate "called frequency" measured in
cycles per second or Hertz "Hz" - ANSWER-AC
Only an amplitude component called potential "voltage" and a frequency of zero Since it does
not ever alternate back and forth - ANSWER-DC
Found in the wall sockets of homes "in the US that's delivered at 60Hz, typically at 110 voltsg -
ANSWER-AC
The alternator creates AC that is changed into DC by a process called... - ANSWER-rectification
The AC generated inside the alternator's stator must pass through diodes that rectify it so it can
be connected with DC components like... - ANSWER-The car battery and other devices
AC OR DC describes. .. - ANSWER-Current flow behavior
, Amount of actual electrons flowing in an AC or DC circuit is still expressed as. .. - ANSWER-
Amperes
No voltage= - ANSWER-No current
In ohms law, current is Symbolized as... - ANSWER-A or I for intensity of electron flow
1000 millivolts "mv"= - ANSWER-1 Volt
1 million microvolts "uV"= - ANSWER-1 volt
1000 Milliamps "uA"= - ANSWER-1 ampere
1 million microamps"uA"= - ANSWER-1 ampere
The opposition to current flow is called? - ANSWER-ReSistance
an infinite amount of resistance would produce no current flow, which is known as an... -
ANSWER-open circuit
no resistance at all, results in the highest possible current flow, which is known as a - ANSWER-
short circuit
at least some amount of electrical resistance is necessary for any electrical circuit To... -
ANSWER-operate safely and dependably
corrosion or poor connections are the cause of unnecessary - ANSWER-added reSistance
in ohms law, the symbol for resistance is simply... - ANSWER-R
1000 milliohms "m"= - ANSWER-1 ohm
1k ohm= - ANSWER-1000 ohms
1M ohm= - ANSWER-1 million ohms
Ohm's law describes a specific and measurable relationship between - ANSWER-voltage, current
and resistance
Electrical power is symbolized by? - ANSWER-p or w
The energy required to move 6.24 x 10^18 electrons "one coulomb of charge" past a point in a
circuit through a potential of one volt - ANSWER-Joule
1 million ohms = - ANSWER-1 Megaohm
The voltage applied to a DC series circuit must equal the Sum of the voltage drops within the
circuit - ANSWER-Kurchhoff's Voltage Law
VERIFIED QUESTIONS AND ANSWERS
a difference of electrical potential Or charge between two points is measured in - ANSWER-Volts
The Difference of potential in a battery is... - ANSWER-voltage that forces electrons to move
In Ohm's Law, the pRoperty of voltage is often symbolized as... - ANSWER-E
Voltage is really... - ANSWER-Electronic force
In ohms law, voltage is represented by either... - ANSWER-V or E
Current is the movement or flOw of... - ANSWER-Free electrons through a conductor
The way current is measured is in units called... - ANSWER-Amps or Amperes
6.24x10^18 is known as a... - ANSWER-Coulomb
Free electrons moving from one ion to the next is... - ANSWER-How Current flows
Voltage is a charge between... - ANSWER-Two points
What are two types of electrical current? - ANSWER-AC AND DC
Periodically reverses direction of electrons flowing "back and forth" - ANSWER-AC
AlwAys flows in one direction - ANSWER-DC
Has both amplitude component "how much" and frequency component "How often" -
ANSWER-AC
Changes periodically from positive to negative at a certain rate "called frequency" measured in
cycles per second or Hertz "Hz" - ANSWER-AC
Only an amplitude component called potential "voltage" and a frequency of zero Since it does
not ever alternate back and forth - ANSWER-DC
Found in the wall sockets of homes "in the US that's delivered at 60Hz, typically at 110 voltsg -
ANSWER-AC
The alternator creates AC that is changed into DC by a process called... - ANSWER-rectification
The AC generated inside the alternator's stator must pass through diodes that rectify it so it can
be connected with DC components like... - ANSWER-The car battery and other devices
AC OR DC describes. .. - ANSWER-Current flow behavior
, Amount of actual electrons flowing in an AC or DC circuit is still expressed as. .. - ANSWER-
Amperes
No voltage= - ANSWER-No current
In ohms law, current is Symbolized as... - ANSWER-A or I for intensity of electron flow
1000 millivolts "mv"= - ANSWER-1 Volt
1 million microvolts "uV"= - ANSWER-1 volt
1000 Milliamps "uA"= - ANSWER-1 ampere
1 million microamps"uA"= - ANSWER-1 ampere
The opposition to current flow is called? - ANSWER-ReSistance
an infinite amount of resistance would produce no current flow, which is known as an... -
ANSWER-open circuit
no resistance at all, results in the highest possible current flow, which is known as a - ANSWER-
short circuit
at least some amount of electrical resistance is necessary for any electrical circuit To... -
ANSWER-operate safely and dependably
corrosion or poor connections are the cause of unnecessary - ANSWER-added reSistance
in ohms law, the symbol for resistance is simply... - ANSWER-R
1000 milliohms "m"= - ANSWER-1 ohm
1k ohm= - ANSWER-1000 ohms
1M ohm= - ANSWER-1 million ohms
Ohm's law describes a specific and measurable relationship between - ANSWER-voltage, current
and resistance
Electrical power is symbolized by? - ANSWER-p or w
The energy required to move 6.24 x 10^18 electrons "one coulomb of charge" past a point in a
circuit through a potential of one volt - ANSWER-Joule
1 million ohms = - ANSWER-1 Megaohm
The voltage applied to a DC series circuit must equal the Sum of the voltage drops within the
circuit - ANSWER-Kurchhoff's Voltage Law
