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Grade 12th passIIT JEE Entrance Exam

a LCR circuit how does a current behave?
A) decay of current is straight line
B) the current Decays exponentially
C) the current suddenly grows
D) the current is zero

Profile image of Amit
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
6 Years ago
Dear student
 
FOR DC CIRCUITS ENTIRE VOLTAGE COME across THE capacitor SO CURRENT IS ZERO...
IN LCR CIRCUITS CURRENT VARIES ACCORDING TO FREQUENCY ( FOR AC CIRCUITS)
AT A PARTICULAR FREQ (F0) CALLED RESONANCE FREQ THE CURRENT IN THE RLC CIRCUIT IS MAXIMUM.
CURRENT IS INVERSLY proportional TO impedance of LCR NETWORK

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