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An LCR series circuit with 100Ω resistance is connected to an AC source of 200V and angular frequency 300 radians per second. When only the capacitance is removed, the current lags the voltage by 60°. When only the inductance is removed, the current leads the voltage by 60°. Then the current and power dissipated in LCR circuit are respectively.
  • a)
    1A, 400Watt.
  • b)
    2A, 400Watt. 
  • c)
    2A, 200Watt.
  • d)
    1A, 200Watt.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
An LCR series circuit with 100Ω resistance is connected to an AC...
When capacitance is removed

 when inductance is removed

  From equation (1) and (2) 
So it is condition of resonance.
 So  Z = R = 100Ω
I = V/R = 200/100= 2A
Power  P = I2R = 4 ×100 = 400 W
The correct answer is: 2A, 400Watt.
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Most Upvoted Answer
An LCR series circuit with 100Ω resistance is connected to an AC...
An LCR series circuit with 100 ohms resistance, 0.1 henries inductance, and 10 microfarads capacitance has a voltage source connected to it.
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An LCR series circuit with 100Ω resistance is connected to an AC source of 200V and angular frequency 300 radians per second. When only the capacitance is removed, the current lags the voltage by 60°. When only the inductance is removed, the current leads the voltage by 60°. Then the current and power dissipated in LCR circuit are respectively.a)1A, 400Watt.b)2A, 400Watt.c)2A, 200Watt.d)1A, 200Watt.Correct answer is option 'B'. Can you explain this answer?
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An LCR series circuit with 100Ω resistance is connected to an AC source of 200V and angular frequency 300 radians per second. When only the capacitance is removed, the current lags the voltage by 60°. When only the inductance is removed, the current leads the voltage by 60°. Then the current and power dissipated in LCR circuit are respectively.a)1A, 400Watt.b)2A, 400Watt.c)2A, 200Watt.d)1A, 200Watt.Correct answer is option 'B'. 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 An LCR series circuit with 100Ω resistance is connected to an AC source of 200V and angular frequency 300 radians per second. When only the capacitance is removed, the current lags the voltage by 60°. When only the inductance is removed, the current leads the voltage by 60°. Then the current and power dissipated in LCR circuit are respectively.a)1A, 400Watt.b)2A, 400Watt.c)2A, 200Watt.d)1A, 200Watt.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An LCR series circuit with 100Ω resistance is connected to an AC source of 200V and angular frequency 300 radians per second. When only the capacitance is removed, the current lags the voltage by 60°. When only the inductance is removed, the current leads the voltage by 60°. Then the current and power dissipated in LCR circuit are respectively.a)1A, 400Watt.b)2A, 400Watt.c)2A, 200Watt.d)1A, 200Watt.Correct answer is option 'B'. Can you explain this answer?.
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