"Glenn Richards" wrote in
message
. uk
Serge Auckland wrote:

No it isn't! Your experiment is being done with dc.
Repeat the experiment with 50Hz to one bulb and 10kHz to
the second bulb, both bulbs being fed through a single
amplifier and fed through a simple capacitor or inductor
"crossover". You will now see that the bulbs don't
change their brightness.

Makes no difference, AC or DC. Series resistance is still
the same, regardless of line frequency. That experiment
was to illustrate a concept, not specifics. The principle
is exactly the same.

That's where you are over-simplifying, Glenn.