capacitor debate keep it clean

oldspark wrote: If current flow is not involved in a capacitor, the WHAT is being charged? I suggest you find out how a capacitor works.

Please tell me you know what's charging and how its charging, and explain.I can't hear you!

The news tonight said that GM introduced a hybrid vehicle with capacitors and no batteries. That will NEVER be a headline on any news carrier.

i am an idiot wrote: The news tonight said that GM introduced a hybrid vehicle with capacitors and no batteries. That will NEVER be a headline on any news carrier.

You're right because capacitors need a power source... that's elementaryI can't hear you!

So in a hybrid vehicle, the batteries are the power source?

Yes it has a potential difference, meaning it has a voltage, if it has a current running through it, it has power, and the power is not being absorbed, so it is being DISSIPATED into the circuit which mean it is a SOURCE of power...I can't hear you!

Those must be magic batteries. I always thought that a battery had to be charged by an external source. If these capacitors are so good, why do we have to have a battery?

i am an idiot wrote: Those must be magic batteries. I always thought that a battery had to be charged by an external source. If these capacitors are so good, why do we have to have a battery?

Batteries do not have to be charged by an external source while being used if it has an initial charge... answered. . Capacitors show the potential difference that is across its terminals, which has to be an outside voltage source. ANY voltage source, does not have to be a BATTERY. But usually is unless you're in a lab with simlating voltage sources like I am... capacitors only react to what is in the circuit, if you have a circuit with no battery aka no potential difference then the capacitor will not show a potential difference, meaning 0v... but again, it can be ANY voltage source, not only a battery... answered Now I have a question id like answered.... since you think batterues have to be charged by an outside voltage source, why is it that after use and a theoretical voltage drop of say 1 volt, does the battery RISE (key word) back up to its resting voltage? Without external charging... please explain sir I can't hear you!

From what you're saying, wouldn't it just stay at whatever voltage it has dropped down to without an external source?I can't hear you!

rfhvhtoo - you need to read batteryfaq.org-carfaq. I recommend downloading as per Section 19 (printing ).

rfhvhtoo wrote: Batteries do not have to be charged by an external source while being used if it has an initial charge...

Yes, provided it has enough capacity (as with a capacitor). But then you need to recharge it to recover its initial state of charge - again, no different from a capacitor except for its ~30% inefficiency.

rfhvhtoo wrote: You're right because capacitors need a power source... that's elementary

Same as batteries, except for their initial "dry" charge. Batteries just like capacitors do not "self recharge" - that's elementary.

rfhvhtoo wrote: why is it that after use and a theoretical voltage drop of say 1 volt, does the battery RISE (key word) back up to its resting voltage? Without external charging...

That's call self recovery, but it never recovers to the original voltage since a discharge has occurred. Your other statements are common electrical/electronic theory - eg: Every component has whatever voltage it has across it whether it be a power source (capacitor, inductor, battery, generator, PV cell...) or a load (capacitor, inductor, battery, generator, PV cell...). Every component responds to what is in the circuit. But we can accurately model that - eg, V=I, Frequency is proportional to RC, C=Q/V. And getting back to much earlier fundamental issues: A capacitor is charged by charge. The flow of charge is current. Watch the animation "DC does flow thru a capacitor" about 3 screens down on talkingelectronics-Page03. Then maybe try antonine-education.co.uk-Capacitor_1 - note for example: "The capacitor does NOT conduct electricity. The flow of ac is due to the charge and discharge of the capacitor.".    ...and the two flash animations about 3/4 down in splung.com's Capacitance of a Capacitor.

@ rfhvhtoo:I cant take it anymore... What does your name stand for/mean...? Acronym...? Maybe its simple and i just do not see it... TYM.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!