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Resonance occurs in a series LCR circuit when the frequency of the applied emf is 1000Hz.
  • a)
    at only resonance the voltage across L and C differ in phase by 180° 
  • b)
    when f = 900Hz, then the current through the voltage source will be ahead of emf of the source 
  • c)
    the impedance of the circuit is minimum at f = 1000Hz 
  • d)
    if the value of C is doubled, resonance occurs at f = 2000Hz 
Correct answer is option 'B,C'. Can you explain this answer?
Verified Answer
Resonance occurs in a seriesLCRcircuit when the frequency of the appli...
(f = 900 Hz) < (fres = 1000 Hz), so XC > XL, circuit becomes capacitive and current leads emf.
At resistance, impedance in minimum.
Not only at resonance, but at all conditions voltage across L and C differs in phase by 180° when connected in series.
The correct answers are: when f = 900Hz, then the current through the voltage source will be ahead of emf of the source, the impedance of the circuit is minimum at f = 1000Hz
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Most Upvoted Answer
Resonance occurs in a seriesLCRcircuit when the frequency of the appli...
B)the current in the circuit is maximum at resonance

c)the impedance of the circuit is minimum at resonance

d)the power factor of the circuit is unity at resonance
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Resonance occurs in a seriesLCRcircuit when the frequency of the appliedemfis1000Hz.a)at only resonance the voltage acrossLandCdiffer in phase by 180°b)whenf= 900Hz, then the current through the voltage source will be ahead ofemfof the sourcec)the impedance of the circuit is minimum atf= 1000Hzd)if the value ofCis doubled, resonance occurs atf= 2000HzCorrect answer is option 'B,C'. Can you explain this answer?
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Resonance occurs in a seriesLCRcircuit when the frequency of the appliedemfis1000Hz.a)at only resonance the voltage acrossLandCdiffer in phase by 180°b)whenf= 900Hz, then the current through the voltage source will be ahead ofemfof the sourcec)the impedance of the circuit is minimum atf= 1000Hzd)if the value ofCis doubled, resonance occurs atf= 2000HzCorrect answer is option 'B,C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Resonance occurs in a seriesLCRcircuit when the frequency of the appliedemfis1000Hz.a)at only resonance the voltage acrossLandCdiffer in phase by 180°b)whenf= 900Hz, then the current through the voltage source will be ahead ofemfof the sourcec)the impedance of the circuit is minimum atf= 1000Hzd)if the value ofCis doubled, resonance occurs atf= 2000HzCorrect answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Resonance occurs in a seriesLCRcircuit when the frequency of the appliedemfis1000Hz.a)at only resonance the voltage acrossLandCdiffer in phase by 180°b)whenf= 900Hz, then the current through the voltage source will be ahead ofemfof the sourcec)the impedance of the circuit is minimum atf= 1000Hzd)if the value ofCis doubled, resonance occurs atf= 2000HzCorrect answer is option 'B,C'. Can you explain this answer?.
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