AC current

AC current

1. Resisitor

   • V=V sin(2πft)
   • I=I sin(2πft)
   • I and V varies together

2. Inductor

   • V=V sin(2πft + )
   • I=I sin(2πft)
   • V leads I by 90°

3. Capacitor

   • V=V sin(2πft)
   • I=I sin(2πft+ )
   • I leads V by 90°

4. Root Mean Square

   • rms current is the effective value of A.C.
   • only applicable for sinusoidal

5. power

   • p=

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