Section: 13. AC Circuits | Physics - KhanAcademy

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  Average and RMS values
  
  Select activity What is RMS value? (& why should we care?)
  
  What is RMS value? (& why should we care?) Lesson
  
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  Select activity Sine wave RMS value - derivation (without calculus)
  
  Sine wave RMS value - derivation (without calculus) Lesson
  
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  Different Types of AC Circuits
  
  Select activity AC voltage applied to resistors
  
  
  
  AC voltage applied to resistors Lesson
  
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  Select activity Phasor diagram (& its applications)
  
  
  
  Phasor diagram (& its applications) Lesson
  
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  Select activity Example: Relating Phasor diagrams with equations
  
  
  
  Example: Relating Phasor diagrams with equations Lesson
  
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  Select activity AC voltage across pure inductor (derivation)
  
  
  
  AC voltage across pure inductor (derivation) Lesson
  
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  Select activity Why current lags voltage in inductors (logic)
  
  
  
  Why current lags voltage in inductors (logic) Lesson
  
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  Select activity Reactance, resistance, & impedance (what's the difference?)
  
  
  
  Reactance, resistance, & impedance (what's the difference?) Lesson
  
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  Select activity AC voltage across a capacitor (derivation)
  
  
  
  AC voltage across a capacitor (derivation) Lesson
  
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  Select activity Why current leads voltage in a capacitor (logic)
  
  
  
  Why current leads voltage in a capacitor (logic) Lesson
  
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  Select activity Worked example: Phase difference between voltage and current in AC
  
  
  
  Worked example: Phase difference between voltage and current in AC Lesson
  
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  Power in AC circuit
  
  Select activity What is power factor? (Power in AC circuits)
  
  What is power factor? (Power in AC circuits) Lesson
  
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  Electric Resonance
  
  Select activity LCR resonance & resonant frequency
  
  
  
  LCR resonance & resonant frequency Lesson
  
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  Select activity LCR frequency response & quality
  
  
  
  LCR frequency response & quality Lesson
  
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  Select activity Worked example: Voltage in a series LCR Circuit
  
  
  
  Worked example: Voltage in a series LCR Circuit Lesson
  
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  Select activity Worked example: Impedance in series LCR circuit
  
  
  
  Worked example: Impedance in series LCR circuit Lesson
  
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  Select activity Worked examples: Phase angle in a series LCR Circuit
  
  
  
  Worked examples: Phase angle in a series LCR Circuit Lesson
  
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  Select activity Worked examples: Resonance frequency in LCR circuits
  
  
  
  Worked examples: Resonance frequency in LCR circuits Lesson
  
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13. AC Circuits

Section outline

Average and RMS values

Different Types of AC Circuits

Power in AC circuit

Electric Resonance

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