Capacitors and Capacitance - Capacitor physics and circuit operation

WEBVTT
Kind: captions
Language: en

00:00:06.458 --> 00:00:11.798
In a metal conductor, the positive charges of the molecules are held in place,
00:00:11.798 --> 00:00:17.515
While the negative charges of the particles are free moving.
00:00:18.659 --> 00:00:21.137
The mineral usually has an equal amount
00:00:21.137 --> 00:00:24.239
Of the positive and negative charges in its molecules,
00:00:24.239 --> 00:00:27.578
Making that metal like all electrically neutral.
00:00:28.679 --> 00:00:33.698
If we apply the power of trying to push more electrons into this metal plate,
00:00:33.698 --> 00:00:39.159
We will not succeed, because particles of similar charges repel each other.
00:00:40.436 --> 00:00:44.454
If the electrons accumulate inside the metal plate,
00:00:44.454 --> 00:00:49.900
It will repel each other and repel each other with the new electrons.
00:00:50.505 --> 00:00:52.970
So, if we apply any strength,
00:00:52.970 --> 00:00:56.136
The metal will remain electrically neutral.
00:01:01.207 --> 00:01:04.068
Now, let us assume a new scene in which another metal plate is added near the indicated plate.
00:01:10.657 --> 00:01:14.087
Once the electrons accumulate in the first metal plate,
00:01:14.087 --> 00:01:18.085
It will repel electrons on the second metal plate.
00:01:21.098 --> 00:01:27.400
Thus the positive charges of the remaining particles on the second plate will apply force on
00:01:27.667 --> 00:01:30.815
Negative charges in the first metal plate.
00:01:33.658 --> 00:01:36.116
This enables the first plate to be acquired
00:01:36.116 --> 00:01:39.166
Negative charges are more than positive charges.
00:01:42.950 --> 00:01:46.679
And as soon as we add electrons to the first metal plate,
00:01:46.679 --> 00:01:49.821
A similar number of electrons will leave the second plate.
00:01:54.420 --> 00:01:58.870
After a certain number of additional electrons accumulate on the first plate,
00:01:58.870 --> 00:02:02.440
These will repel any new electrons trying to get in.
00:02:02.940 --> 00:02:05.400
Thus, the first plate acquires a negative negative charge,
00:02:08.850 --> 00:02:11.169
It acquires the second metal plate
00:02:11.169 --> 00:02:13.908
A similar and opposite number of positive charges.
00:02:17.572 --> 00:02:22.392
We can make this equal and opposite charge on each sheet metal larger
00:02:22.392 --> 00:02:25.361
By applying greater external force.
00:02:37.140 --> 00:02:40.400
If we remove the external force that we apply,
00:02:40.400 --> 00:02:45.700
The extra electrons will continue to repel the first metal plate.
00:02:54.780 --> 00:02:57.518
And with that, we have returned to our original state
00:02:57.518 --> 00:03:00.371
Where the net charge of each plate is zero.
00:03:05.541 --> 00:03:08.589
We call these two "condensed" metal plates.
00:03:13.330 --> 00:03:17.460
Note: The tension is reversed in this video
00:03:17.460 --> 00:03:20.180
Because the blue arrows will represent the motion of the electrons.
00:03:35.452 --> 00:03:39.290
Connect the capacitor to a battery for a while as shown,
00:03:39.290 --> 00:03:42.762
The two plates will acquire identical and opposite charges.
00:03:44.400 --> 00:03:47.878
If we later came to the intense lamp,
00:03:47.878 --> 00:03:52.151
All additional electrons will move on the plate with a negative charge
00:03:52.151 --> 00:03:55.371
To the positively charged plate through the lamp.
00:04:05.760 --> 00:04:09.050
If we use several batteries connected in series, then
00:04:09.050 --> 00:04:14.079
We can force my dense plate to gain more quantities of charge.
00:04:19.992 --> 00:04:22.231
When the capacitor is shipped,
00:04:22.231 --> 00:04:26.310
Its tension will be the sum of the tensions in all batteries.
00:04:36.021 --> 00:04:39.200
The condensed charge with higher tension will make
00:04:39.200 --> 00:04:43.470
The lamp is lit for a longer period when the capacitor is discharged.
00:04:48.008 --> 00:04:51.810
Now suppose that we have increased the two metal plate areas.
00:05:01.854 --> 00:05:06.365
The added space will allow you to push additional electrons
00:05:06.365 --> 00:05:12.316
To the first metal plate, and removing electrons from the second metal plate,
00:05:12.316 --> 00:05:15.645
Without applying external force.
00:05:39.392 --> 00:05:42.830
When connecting a larger capacitor to our battery,
00:05:42.830 --> 00:05:47.059
The condenser charging will take longer on battery tension.
00:05:53.725 --> 00:05:58.165
Although the final tension remained equal to that of our battery,
00:05:58.165 --> 00:06:01.766
This tension is condensed
00:06:01.766 --> 00:06:04.785
The largest amount of charge is stored in the two metal plates.
00:06:11.165 --> 00:06:15.117
The more capacitor will take longer to empty the lamp,
00:06:15.117 --> 00:06:18.776
Condensing enables it to stay on fire longer.
00:06:26.447 --> 00:06:30.286
Suppose we added a label between the two plates.
00:06:33.596 --> 00:06:37.608
This substance does not allow any molecules to flow through it,
00:06:46.258 --> 00:06:49.597
But they contain particles that can change their direction
00:06:49.597 --> 00:06:52.326
Based on shipments.
00:06:57.921 --> 00:07:03.389
These charges apply force that draws more electrons toward the negative plate,
00:07:03.389 --> 00:07:07.048
And repel more electrons in the positive plate.
00:07:16.825 --> 00:07:20.076
The presence of this substance has the same effect
00:07:20.076 --> 00:07:23.394
Increase the area of ​​the two metal plates.
00:07:29.807 --> 00:07:33.564
This allows the two plates to acquire larger net charges,
00:07:33.564 --> 00:07:35.997
At the same tension.
00:07:38.889 --> 00:07:41.688
When we increase the area of ​​the two plates, or when we add this special material,
00:07:41.688 --> 00:07:46.050
We can say that we have increased intense "amplitude".
00:07:51.137 --> 00:07:55.395
There is also a third way to increase the capacitance capacitance.
00:08:05.056 --> 00:08:08.356
And by bringing the two plates closer together.
00:08:26.589 --> 00:08:29.398
Since the two plates are now closer together,
00:08:29.398 --> 00:08:32.861
They apply more forces to each other's electrons.
00:08:37.509 --> 00:08:41.009
This attracts more electrons towards the negative plate
00:08:41.009 --> 00:08:44.560
More electrons are repelled into the positive plate
00:08:44.560 --> 00:08:48.359
Allowing the plates to acquire larger net charges,
00:08:48.359 --> 00:08:50.757
When applying the same tension.
00:08:57.807 --> 00:09:01.750
And that is why the addition of the special substance affected itself,
00:09:01.750 --> 00:09:05.140
As well as increasing the areas of the two metal plates.
00:09:10.713 --> 00:09:14.115
To create the largest amplitude possible,
00:09:14.115 --> 00:09:18.183
We have to make the two plate areas as large as possible,
00:09:18.183 --> 00:09:21.642
And to add the special 'material between the two plates,
00:09:21.642 --> 00:09:24.594
And to bring the two plates as close as possible.
00:09:28.721 --> 00:09:31.853
The larger the amplitude, the greater the energy
00:09:31.853 --> 00:09:34.612
That will be stored at the same tension.
00:09:41.020 --> 00:09:43.649
You will find more information about the electrical circuits
00:09:43.649 --> 00:09:46.210
In other videos on this channel.
00:09:47.001 --> 00:09:50.426
Please subscribe to this channel to receive notifications about upcoming new videos.
Office location
Engineering company LOTUS®
Russia, Ekaterinburg, Lunacharskogo street, 240/12

Phone: +7 343 216 77 75

E-mail: info@lotus1.ru

Sales phone

Russia: +7 343 216 77 75

WhatsApp: +79122710308