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Magnitude....of....current....at....resonance....in....R-L-C....circuit....(a)....depends....upon....the....magnitude....of....R....(b)....depends....upon....the....magnitude....of....L....(c)....depends....upon....the....magnitude....of....C....(d)....depends....upon....the....magnitude....of....R,....Land....C....Ans:....a....61.....The..amount..of..voltage..induced..in..the..coil..depends..on..the..rate..of..change..of..the..magnetic..field...In..the..Phasor..Domain..In..the..phasor..domain..the..voltage..across..the..coil..is..given..as:..and..in..Polar..Form..this..would..be..written..as:XL..90o..where:......AC..through..a..Series..R..+..L..Circuit..We..have..seen..above..that..the..current..flowing..through..a..purely..inductive..coil..lags..the..voltage..by..90o..and..when..we..say..a..purely..inductive..coil..we..mean..one..that..has..no..ohmic..resistance..and..therefore,..no..I2R..losses...At...very...low...frequencies...a...series...R-C...circuit...behaves...as...almost...purely...(a)...resistive...(b)...inductive...(c)...capacitive...(d)...none...of...the...above...Ans:...c...82....My...question...is,...how...will...current...flow...at...all...when...the...EMFs...of...AC...source...and...solenoid...are...cancelling...each...other...out?...Its...like...having...having...a...circuit...with...only...two...batteries...and...terminals...of...similar...polarities...shorted...with...each...other....Subscribe....Tutorials....AC....Circuits....Amplifiers....Attenuators....Binary....Numbers....Boolean....Algebra....Capacitors....Combinational....Logic....Counters....DC....Circuits....Diodes....Electromagnetism....Filters....Inductors....Input/Output....Devices....Logic....Gates....Miscellaneous....Circuits....Operational....Amplifiers....Oscillator....Power....Electronics....RC....Networks....Resistors....Sequential....Logic....Systems....Transformers....Transistors....Waveform....Generators....Reference....Designs....Sitemap....Link....Partners....Contact....Us....Looking....for....the....latest....from....TI?.........What..will..be..the..phase..angle..between..two..alternating..waves..of..equal..frequency,..when..one..wave..attains..maximum..value..the..other..is..at..zero..value..?..(a)..0..(b)..45..(c)..90..(d)..180..Ans:..c..78...(a)...low...(b)...very...low...(c)...high...(d)...very...high...Ans:...d...84....

But..to..distinguish..a..DC..resistance..value..from..an..AC..resistance..value,..which..is..also..known..as..Impedance,..the..term..Reactance..is..used...The..resulting..voltage..of..these..two..components..can..be..found..either..mathematically..or..by..drawing..a..vector..diagram...The..growth..of..the..current..flowing..through..the..inductor..is..not..instant..but..is..determined..by..the..inductors..own..self-induced..or..back..emf..value...flowing....through....the....same....circuit....(d)....none....of....the....above....Ans:....b....43.....The....value....230....V....refers....to....(a)....average....voltage....(b)....r.m.s.....The...phase...difference...between...voltage...and...current...wave...through...a...circuit...element...is...given...as...30....The...Impedance...of...an...AC...Inductance...Impedance,...Z...is...the...TOTAL...opposition...to...current...flowing...in...an...AC...circuit...that...contains...both...Resistance,...(the...real...part)...and...Reactance...(the...imaginary...part)....This...current...will...continue...to...rise...until...it...reaches...its...maximum...steady...state...condition...which...is...around...five...time...constants...when...this...self-induced...back...emf...has...decayed...to...zero....Increase..their..DC..resistances..Posted..on..June..21st..2015....2:36..pm..Reply..v..venkat..Please..explain..me..about..synchronous..reactance..in..a..3..phase..alternator...Consider...an...ideal...solenoid...(no...resistance,...no...leakage...reactance...etc.)...connected...across...an...AC...supply....

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