"Szczepan Bialek" wrote in message
.. .
In reality the real condenser conducts (electrons are flowing) the DC
but
do
not AC.
In the teaching program is opposite.
S*

What an utter idiot.

Who wants to try to explain to this babbling idiot that the impedance of
a capacitor is 1 / ( 2 X pi X f X C) which means if f is zero (DC) the
impedance is infinite and there is no conduction (in an ideal capacitor).

You and teachers live in the ideal world where are the ideal capacitors.

Leyden jar has insulator made of glass.
It is possible to make it with insulator "made" of the air.

What will be leakage in such case?
S*

Errr ... if your computer used capacitors with air dielectric then I doubt
we'd hear from you again.

If it helps you, capacitors pass AC and block DC.

Regards, Ian.