- #1
fisico30
- 374
- 0
hello Forum,
why is the voltage on a capacitor not instantaneously following the change in the current (which follows the change in the generator source voltage)?
Where does the delay come from (90 degree phase retardation)?
WE can think of the capacitor as having some inertia.
The same story seems to exists for the inductor.
Using the mechanical oscillator analogy, I always thought it this way: the inertia (like a mass) is the inductance L. The spring constant k is the 1/C, (the inverse of the capacitance).
Does this have to do with the finite speed of light?
thanks
fisico30
why is the voltage on a capacitor not instantaneously following the change in the current (which follows the change in the generator source voltage)?
Where does the delay come from (90 degree phase retardation)?
WE can think of the capacitor as having some inertia.
The same story seems to exists for the inductor.
Using the mechanical oscillator analogy, I always thought it this way: the inertia (like a mass) is the inductance L. The spring constant k is the 1/C, (the inverse of the capacitance).
Does this have to do with the finite speed of light?
thanks
fisico30