-
Categories
-
Platforms
-
Content
I don't understand the question. In the capacitor by itself, the rate of change in voltage is proportional to the current. If you want a spike of voltage across the cap, then you have to apply a step of current. Perhaps you can give an example of what you mean. Everything takes a finite amount of time to change. Instantaneous is theoretical.voltage and why voltage cannot change instantaneously in capacitor but current but why current cannot change instantaneously in inductor.Thank you in advacne
If you want a spike of voltage across the cap, then you have to apply a step of current.
Did you mean to say impulse? (And that will only give you a step). No finite current is going to produce a spike in voltage across a theoretical capacitor. (Am I wrong?)
If I/C is a step that means that I/C goes from zero to some constant value instantaneously. That means that dE/dt goes from zero to some constant value. But a constant dE/dt means the voltage slope is a constant which is the same as saying that the voltage is a ramp. I don't believe that a voltage ramp can be called a spike.
If I/C is a step that means that I/C goes from zero to some constant value instantaneously. That means that dE/dt goes from zero to some constant value. But a constant dE/dt means the voltage slope is a constant which is the same as saying that the voltage is a ramp. I don't believe that a voltage ramp can be called a spike.
... If you want a spike of voltage across the cap, then you have to apply a step of current. ...
... If a step voltage occurs in a capacitor, then a current spike occurs. ...
So which statement is correct?