Alternating Current

41 topics, ranked by how often each is asked.

Practise Alternating CurrentBrowse all questions
  • 60 questions
  • 34 papers
  • 3.4% of Physics

Topics

The squares are the last ten exam years: filled means it was asked that year.

Most asked first

41 topics · 60 questions
  1. 1Transformer10%6 questionsPractise Transformer
  2. 2AC Voltage Applied to a Capacitor6.7%4 questionsPractise AC Voltage Applied to a Capacitor
  3. 3Power in AC circuits6.7%4 questionsPractise Power in AC circuits
  4. 4Series LCR Circuit5%3 questionsPractise Series LCR Circuit
  5. 5LR circuit5%3 questionsPractise LR circuit
  6. 6Transformers3.3%2 questionsPractise Transformers
  7. 7Series LCR Resonance3.3%2 questionsPractise Series LCR Resonance
  8. 8Power in series LCR circuit3.3%2 questionsPractise Power in series LCR circuit
  9. 9LC oscillations3.3%2 questionsPractise LC oscillations
  10. 10Capacitive Circuit (Peak Current)1.7%1 questionPractise Capacitive Circuit (Peak Current)
  11. 11Impedance of a Series LCR Circuit1.7%1 questionPractise Impedance of a Series LCR Circuit
  12. 12AC Voltage – Peak and RMS Values1.7%1 questionPractise AC Voltage – Peak and RMS Values
  13. 13Series LCR Circuit – Impedance1.7%1 questionPractise Series LCR Circuit – Impedance
  14. 14Series LCR Circuit – Resonance and Half-power Frequencies1.7%1 questionPractise Series LCR Circuit – Resonance and Half-power Frequencies
  15. 15Series LCR Circuit – Power Factor1.7%1 questionPractise Series LCR Circuit – Power Factor
  16. 16Resonance frequency of a series LCR circuit1.7%1 questionPractise Resonance frequency of a series LCR circuit
  17. 17Instantaneous value of alternating current1.7%1 questionPractise Instantaneous value of alternating current
  18. 18AC circuit with a pure inductor1.7%1 questionPractise AC circuit with a pure inductor
  19. 19Damped LC oscillations - charge decay1.7%1 questionPractise Damped LC oscillations - charge decay
  20. 20Inductive reactance and inductance1.7%1 questionPractise Inductive reactance and inductance
  21. 21Phase angle in a series LR AC circuit1.7%1 questionPractise Phase angle in a series LR AC circuit
  22. 22Impedance calculation - DC vs AC circuits1.7%1 questionPractise Impedance calculation - DC vs AC circuits
  23. 23Power dissipation in AC circuits1.7%1 questionPractise Power dissipation in AC circuits
  24. 24EMF of an AC generator1.7%1 questionPractise EMF of an AC generator
  25. 25Impedance of a mixed LCR circuit at very high frequency1.7%1 questionPractise Impedance of a mixed LCR circuit at very high frequency
  26. 26Inductive reactance1.7%1 questionPractise Inductive reactance
  27. 27RMS and peak values of current1.7%1 questionPractise RMS and peak values of current
  28. 28Alternating EMF1.7%1 questionPractise Alternating EMF
  29. 29Impedance of series circuits1.7%1 questionPractise Impedance of series circuits
  30. 30Series LCR circuit - resonance1.7%1 questionPractise Series LCR circuit - resonance
  31. 31AC through a pure capacitor – power1.7%1 questionPractise AC through a pure capacitor – power
  32. 32Quality factor and sharpness of resonance1.7%1 questionPractise Quality factor and sharpness of resonance
  33. 33Power factor of series LCR circuit1.7%1 questionPractise Power factor of series LCR circuit
  34. 34Series RC circuit1.7%1 questionPractise Series RC circuit
  35. 35RMS value1.7%1 questionPractise RMS value
  36. 36Resonance in Series LCR Circuit1.7%1 questionPractise Resonance in Series LCR Circuit
  37. 37Transformer: Energy Losses1.7%1 questionPractise Transformer: Energy Losses
  38. 38Power Factor of LCR Circuit1.7%1 questionPractise Power Factor of LCR Circuit
  39. 39Series LCR Circuit and Phase1.7%1 questionPractise Series LCR Circuit and Phase
  40. 40Power in AC Circuit1.7%1 questionPractise Power in AC Circuit
  41. 41Series LCR Circuit: Quality Factor1.7%1 questionPractise Series LCR Circuit: Quality Factor

Questions per paper

Asked in 14 of the last 16 papers (2017–2026).

  1. 2026: 2 questions
  2. 2026 Re-NEET: 1 question
  3. 2025: 1 question
  4. 2024: 2 questions
  5. 2024 Re-NEET: 3 questions
  6. 2023: 3 questions
  7. 2023 Manipur: 5 questions
  8. 2022: 2 questions
  9. 2022 Phase 2: 3 questions
  10. 2021: 3 questions
  11. 2020: 2 questions
  12. 2020 Phase-2: 1 question
  13. 2019: not asked
  14. 2019 Odisha: 2 questions
  15. 2018: 1 question
  16. 2017: not asked

Concepts tested

  • Average power and power factor 2
  • Capacitive reactance 2
  • Efficiency of a transformer 2
  • AC circuit with a pure inductor
  • AC voltage applied to a capacitor
  • Alternating EMF
  • capacitor-zero-average-power
  • Conservation of energy in LC circuit
  • Damped LC oscillations - charge decay
  • Eddy current loss
  • Effect of dielectric on capacitive reactance
  • EMF of an AC generator
  • half-power angular frequencies
  • ideal transformer primary current
  • Impedance
  • Impedance and brightness
  • Impedance and Phase Angle
  • Impedance and power factor