i want to know about thinfilm
A current flows because the capacitor stores a charge during the crest, then discharges during the trough. The limit to how much current can flow is determined by the capacitance (which determines how many amp-seconds of charge can be stored / dumped) and the frequency (which determines how often this can happen). ***** EDIT ***** During the crest, a positive charge builds up on the left hand plate and an equal, negative charge builds up on the right hand plate. (If a charge is building up in the capacitor, then a current must be flowing.) During the trough, the left hand plate loses its positive charge and gains a negative charge. The right hand plate loses its negative charge and gains a positive charge. Think of it this way: If you had a cylindrical tank full of water, with a rubber sheet stretched across the middle, and a pipe on each end; then you could push water into the bottom of the tank and, as the rubber stretched, water would be displaced from the pipe at the top of the tank. If you reversed the direction of flow before the expanded rubber occupied the whole of the tank, then you could get water flowing alternately into and out of the tank even though, due to the presence of the membrane, there was no direct path from one pipe to the other. The point is that as long as you keep reversing the flow of the water [current] before the membrane [capacitor] is fully stretched [charged], water is [electrons are] coming out of one end at the same rate as it is going into the other end, and it doesn't matter that it's not actually the same water [electrons] coming out of the top that went into the bottom.
When the voltage pushes an excess of electrons on one plate of the capacitor, electrons are repelled by them on the other plate. These repelled electrons move down the far side wire because of this. The process is mirrored when the opposite plate has an excess of electrons. With repeated polarity changes, electrons move repeatedly causing the AC flow.
Charges (i.e. current) don't really pass through. They build up and decay on the plates of the capacitor influencing charges on the other side through the electric field. If the charge changes on one side, charges on the other side respond. Since they have to move to respond, current appears to flow.
there is not any such factor as a AC capacitor or DC capacitor. Capacitor may even nonetheless be polarized and non-polarized. i anticipate that's what you're touching on. in spite of everything, capacitors block DC cutting-edge (to the quantity of their leakage) and permit AC (to the quantity desperate via the frequency) you should use a polarised capacitor to bypass AC cutting-edge (in fact that's what that's meant for) even nonetheless it is going to could desire to be biased interior the sense that the useful terminal ought to consistently be at a voltage point larger than the adverse terminal. in case you do no longer shelter the flair distinction and as a substitute opposite it, then the polarized capacitor will become worse extremely today.
It sounds more like a broken Suspension Damper ( aka Shock Absorber ). The rear engine Beetle has very simple mounts. The engine attach to the Transmission Housing, no other place. The engine is light enough for two people to move it and I was able to pick it up, so is pretty light. When the Shock Absorbers goes bad, they rattle like they are loose or can bang (as hitting) since they to do not have any dampening.
