Physics XII Content
AC through resistor, capacitor and inductor (tabular form)
The Table below is the table containing the details of AC through resistor, capacitor and inductor.
| Type of circuit | Value of current | Total impedance | Remarks |
| R circuit | I=E/R | Z=R | Both current and emf are in phase |
| L circuit | I=E/XL | Z=XL=Lw | Current lags emf by π/2 |
| C circuit | I=E/XC | Z=XC=1/Cw | Current leads emf by π/2 |
| LR circuit | I=E/Z | Z=√(R2+XL2) where XL=Lw | In R: Both current and emf are in phaseIn L: Current lags emf by π/2 So θ=tan-1(Lw/R) |
| RC circuit | I=E/Z | Z=√(R2+XC2) where Xc=1/Cw | In R: Both current and emf are in phaseIn C: Current leads emf by π/2 So θ=tan-1(-1/CwR) |
| LCR circuit | I=E/Z | Z=√{R2+(XL-XC)2 }where Xc=1/Cw, XL=Lw | In R: Both current and emf are in phaseIn C: Current leads emf by π/2 In L: Current lags emf by π/2 So θ=tan-1{(Lw-1/Cw)/R} |