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Phase Chase

Current and voltage race round a phasor wheel. Set the lag or the current.

Physics · Class 12 · Phase in R, L and C · 8 simulations. For JEE, NEET and your boards.

A picture of the Phase Chase simulation

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What you'll learn

  1. Current through a capacitor: A capacitor passes AC
  2. Current through a coil: A coil holds back AC
  3. The coil lags: A coil's current comes a quarter cycle late
  4. Change the frequency: Reactance changes with f
  5. Voltages as arrows: Voltages a quarter cycle apart add as arrows
  6. Series LCR current: Impedance: the reactances pull opposite ways
  7. How far behind?: The phase angle
  8. Lead by 45°: XC equal to R