AC THEORY EXAM 3 QUESTIONS WITH
CORRECT ANSWERS
Ac vvVOLTAGE vvor vv_____ vvVALUES vvARE vvASSUMED vvTO vvBE vvthe vveffective
vvvalues vvof vvnot vvotherwise vvspecified vv- vvAnswer vvCURRENT
In vvthe vvin vvphase vvrelationship vvthat vvexists vvbetween vvthe vvcurrent vvand vvthe
vvapplied vvvoltage vvin vva vvpure vvresistive vvcircuit, vvthe vvcurrent vvand vvvoltage
vvwaveforms vvpass vvthrough vvzero vvand vv_______ vvvalues vvat vvthe vvsame vvtime vv-
vvAnswer vvMaximum
______ vvis vvmeasured vvin vvwatts vvand vvis vvequal vvto vvthe vvcurrent vvtimes vvthe
vvvoltage vvin vvthe vvcircuit vv- vvAnswer vvPower
The vvpower vvcurve vvdoes vvnot vvfall vvbelow vvthe vvreference vvline vvbecause vvthe
vvpower vvis vvdissipated vvin vvthe vvform vvof vv_______ vv- vvAnswer vvHEAT
In vva vvseries vvAC vvCIRCUIT, vvthe vvcurrent vvis vvalways vvin vvphase vvwith vvthe
vvvoltage vvregardless vvof vvthe vvnumber vvof vv_______ vvin vvThe vvcircuit vv- vvAnswer
vvResistors
In vva vvbasic vvAC vvcircuit, vvthe vv______ vvcan vvbe vvan vvAC vvGENERATOR vvOR vvA
vvCIRCUIT vvTHAT vvGENERATES vvAN vvAC vvVOLTAGE vv- vvAnswer vvAC vvSOURCE
The vv____ vvremains vvconstant vvin vva vvparallel vvcircuit vvacross vveach vvbranch vv-
vvAnswer vvVoltage
In vva vvbasic vvAC vvCIRCUIT, vvthe vv_______ vvcan vvbe vva vvresistor, vva vvheater, vva
vvlamp vv, vvor vvany vvsimilar vvdevice vv- vvAnswer vvResistive vvload
When vvan vvac vvvoltage vvis vvapplied vvto vva vvrestive vvload, vvthe vvac's vvcurrent
vvamplitude vvand vvdirection vvvary vvin vvthe vvsame vvmanner vvas vvthose vvof vvthe
vv______ vv- vvAnswer vvApplied vvvoltage
In vvan vv_______ vvCIRCUIT, vvthe vvaverage vvpower vvis vvthe vvpower vvconsumed vv-
vvAnswer vvAC
In vva vvFREQ vvcounter, vv______ vvdrives vvthe vvgate vvcontrol vvcircuit, vvusing vva vvsignal
vvcompatible vvwith vvthe vvsignal vvbeing vvmeasured vv- vvAnswer vvTime vvbase
CORRECT ANSWERS
Ac vvVOLTAGE vvor vv_____ vvVALUES vvARE vvASSUMED vvTO vvBE vvthe vveffective
vvvalues vvof vvnot vvotherwise vvspecified vv- vvAnswer vvCURRENT
In vvthe vvin vvphase vvrelationship vvthat vvexists vvbetween vvthe vvcurrent vvand vvthe
vvapplied vvvoltage vvin vva vvpure vvresistive vvcircuit, vvthe vvcurrent vvand vvvoltage
vvwaveforms vvpass vvthrough vvzero vvand vv_______ vvvalues vvat vvthe vvsame vvtime vv-
vvAnswer vvMaximum
______ vvis vvmeasured vvin vvwatts vvand vvis vvequal vvto vvthe vvcurrent vvtimes vvthe
vvvoltage vvin vvthe vvcircuit vv- vvAnswer vvPower
The vvpower vvcurve vvdoes vvnot vvfall vvbelow vvthe vvreference vvline vvbecause vvthe
vvpower vvis vvdissipated vvin vvthe vvform vvof vv_______ vv- vvAnswer vvHEAT
In vva vvseries vvAC vvCIRCUIT, vvthe vvcurrent vvis vvalways vvin vvphase vvwith vvthe
vvvoltage vvregardless vvof vvthe vvnumber vvof vv_______ vvin vvThe vvcircuit vv- vvAnswer
vvResistors
In vva vvbasic vvAC vvcircuit, vvthe vv______ vvcan vvbe vvan vvAC vvGENERATOR vvOR vvA
vvCIRCUIT vvTHAT vvGENERATES vvAN vvAC vvVOLTAGE vv- vvAnswer vvAC vvSOURCE
The vv____ vvremains vvconstant vvin vva vvparallel vvcircuit vvacross vveach vvbranch vv-
vvAnswer vvVoltage
In vva vvbasic vvAC vvCIRCUIT, vvthe vv_______ vvcan vvbe vva vvresistor, vva vvheater, vva
vvlamp vv, vvor vvany vvsimilar vvdevice vv- vvAnswer vvResistive vvload
When vvan vvac vvvoltage vvis vvapplied vvto vva vvrestive vvload, vvthe vvac's vvcurrent
vvamplitude vvand vvdirection vvvary vvin vvthe vvsame vvmanner vvas vvthose vvof vvthe
vv______ vv- vvAnswer vvApplied vvvoltage
In vvan vv_______ vvCIRCUIT, vvthe vvaverage vvpower vvis vvthe vvpower vvconsumed vv-
vvAnswer vvAC
In vva vvFREQ vvcounter, vv______ vvdrives vvthe vvgate vvcontrol vvcircuit, vvusing vva vvsignal
vvcompatible vvwith vvthe vvsignal vvbeing vvmeasured vv- vvAnswer vvTime vvbase
