Questions
In an L-C-R series circuit, . Then the voltage supplied across the combination
a
must be in phase with the current
b
must lead the current by 45o
c
must lag the current by 45o
d
must lead the current by 60o
detailed solution
Correct option is C
XL=R, XC=2RSince VC>VL, the supply voltage must lag behind the current z=(XC−XL)2+R2=2Rcosϕ=R2R=12⇒ϕ=45oTalk to our academic expert!
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