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Current in an ac circuit is given by i = 3sin ωt + 4cos ωt, then :
  • a)
    if voltage applied is V = Vmsin ωt, then the circuit must be containing resistance and capacitance
  • b)
    rms value of current is 5A. 
  • c)
    if voltage applied is V = Vmsin ωt,  the circuit may contain resistance and inductance.
  • d)
    mean value of this current in one half period will be 6/π
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then ...



∴   Initial value of time is not given hence the mean value will be different for various time intervals.
If voltage applied is  V = Vm sint ωt  then i given by equation (1) indicates that it is ahead by V by  δ   where  0 < δ < 90   which indicates that the circuit contains R and C.
The correct answer is: if voltage applied is V= Vmsin ωt,  then the circuit must be containing resistance and capacitance
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Most Upvoted Answer
Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then ...



∴   Initial value of time is not given hence the mean value will be different for various time intervals.
If voltage applied is  V = Vm sint ωt  then i given by equation (1) indicates that it is ahead by V by  δ   where  0 < δ < 90   which indicates that the circuit contains R and C.
The correct answer is: if voltage applied is V= Vmsin ωt,  then the circuit must be containing resistance and capacitance
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Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then :a)if voltage applied isV = Vmsinωt,then the circuit must be containing resistance and capacitanceb)rmsvalue of current is 5A.c)if voltage applied isV = Vmsinωt, the circuit may contain resistance and inductance.d)mean value of this current in one half period will be 6/πCorrect answer is option 'A'. Can you explain this answer?
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Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then :a)if voltage applied isV = Vmsinωt,then the circuit must be containing resistance and capacitanceb)rmsvalue of current is 5A.c)if voltage applied isV = Vmsinωt, the circuit may contain resistance and inductance.d)mean value of this current in one half period will be 6/πCorrect answer is option 'A'. 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 Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then :a)if voltage applied isV = Vmsinωt,then the circuit must be containing resistance and capacitanceb)rmsvalue of current is 5A.c)if voltage applied isV = Vmsinωt, the circuit may contain resistance and inductance.d)mean value of this current in one half period will be 6/πCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Current in anaccircuit is given byi= 3sin ωt+ 4cosωt,then :a)if voltage applied isV = Vmsinωt,then the circuit must be containing resistance and capacitanceb)rmsvalue of current is 5A.c)if voltage applied isV = Vmsinωt, the circuit may contain resistance and inductance.d)mean value of this current in one half period will be 6/πCorrect answer is option 'A'. Can you explain this answer?.
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