Question 457: AC fundamentals

Question

A small signal voltage V(t) = V
0
sin$$\omega $$t is applied across an ideal capacitor C

Accepted Answer

In ideal capacitor,  I leads from voltage by 90
o
and capacitor does not consume energy.

Answer

Current $$I(t)$$ is in phase with voltage $$V(t)$$.

Answer

Current $$I(t)$$ leads voltage V(t) by 180
o

Answer

Current $$I(t)$$, legs voltage $$V(t)$$ by 90
o
.

Answer

Over a full cycle the capacitor C foes not consume any energy from the voltage source.

AC fundamentals