Parallel and Mixed AC Circuits questions with solutions

Showing 1–10 of 23 questions

• A/RmediumAC CircuitsParallel and Mixed AC Circuits

  Read the following assertion and reason and choose the correct option.

  Assertion

  Assertion (A): The source current in a parallel RC circuit leads the source voltage.

  Reason

  Reason (R): The capacitor branch current leads the voltage by 90°, while the resistor branch current is in phase with the voltage.

  Options

  • Option A

    Both A and R are true and R is the correct explanation of A.

  • Option B

    Both A and R are true but R is NOT the correct explanation of A.

  • Option C

    A is true but R is false.

  • Option D

    A is false but R is true.

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• Multi-correctmediumAC CircuitsParallel and Mixed AC Circuits

  A parallel RLC circuit is operated at a frequency for which the net reactive current is zero. Which statements are correct?

  Select all that apply

  • Option A

    The source current is in phase with the source voltage

  • Option B

    The overall power factor is unity

  • Option C

    The individual currents through L and C may be larger than the source current

  • Option D

    The source current must be zero

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• NumericeasyAC CircuitsParallel and Mixed AC Circuits

  A parallel RL circuit draws 10 A RMS at a power factor of 0.8 lagging. Determine the RMS current in the ideal inductor branch in ampere.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• NumericeasyAC CircuitsParallel and Mixed AC Circuits

  A load connected to a 200 V RMS source consumes 1600 W at a power factor of 0.8 lagging. Determine the RMS current drawn from the source in ampere.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• NumericmediumAC CircuitsParallel and Mixed AC Circuits

  A branch consisting of R = 10 Ω in series with Xʟ = 10 Ω is connected in parallel with a 20 Ω resistor. The combination is connected across 100 V RMS. If the total average power is 100N W, determine N.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQmediumAC CircuitsParallel and Mixed AC Circuits

  An inductive load draws 10 A RMS from a 100 V RMS source at a power factor of 0.8 lagging. A capacitor is connected in parallel so that the overall power factor becomes unity. Determine the required capacitor current.

  Options

  • Option A

    2 A

  • Option B

    4 A

  • Option C

    6 A

  • Option D

    8 A

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• Multi-correctmediumAC CircuitsParallel and Mixed AC Circuits

  A capacitor is connected in parallel with an inductive load for power-factor correction while the source voltage remains unchanged. Which statements are correct?

  Select all that apply

  • Option A

    The current drawn from the source decreases

  • Option B

    The real power consumed by the original load remains unchanged

  • Option C

    The overall power factor moves toward unity

  • Option D

    The current through the original load necessarily decreases

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• Multi-correctmediumAC CircuitsParallel and Mixed AC Circuits

  A resistor R and a capacitor C are connected in parallel across the same sinusoidal AC source. Which statements are correct?

  Select all that apply

  • Option A

    The resistor current is in phase with the source voltage

  • Option B

    The capacitor current leads the source voltage by 90°

  • Option C

    The total source current leads the source voltage

  • Option D

    The equivalent impedance must be purely real

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQmediumAC CircuitsParallel and Mixed AC Circuits

  A 100 V RMS source is connected across an ideal inductor with Xʟ = 20 Ω and an ideal capacitor with Xᴄ = 25 Ω in parallel. Determine the magnitude and nature of the source current.

  Options

  • Option A

    1 A leading

  • Option B

    1 A lagging

  • Option C

    9 A leading

  • Option D

    9 A lagging

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• NumericmediumAC CircuitsParallel and Mixed AC Circuits

  A 100 V RMS source is connected across three parallel branches containing R = 20 Ω, Xʟ = 25 Ω and Xᴄ = 50 Ω. If the total current is √N A, determine N.

  Your answer

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →