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tpr2_u4: parallel circuit_current

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Subido el 24 de abril de 2020 por Maximino R.

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How to measure current through a lamp in a parallel circuit

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Ok, now we are going to finish this activity by drawing the parallel circuit 00:00:00
This is the series circuit and this one is the parallel circuit 00:00:09
And we have a 5V battery and 3 lamps, each lamp is 10, 25 and 5 ohms 00:00:17
So first we need to create, we need to build the circuit 00:00:26
The battery and the three lamps 00:00:34
One, two and the third one 00:00:42
it's a parallel circuit so the wires has to be in parallel 00:01:01
among them okay that would be here hey and the same for these other parts of 00:01:18
the circuit. That is what I am trying to remember. This wire, this wire and this wire are more or less in parallel 00:01:38
It is the same word but different meaning. And we need to close the circuit so current flows 00:01:55
through each branch, this branch, this another branch, this another branch 00:02:15
ok, what we have to do in this part is to measure the current through L2 00:02:23
so we can do, the easiest way of doing this is using this ammeter 00:02:32
It's a virtual ammeter, so we don't need to connect it, but first we have to write the proper values of each component 00:02:41
and it's 5 volts and then 10, 25 and 5 00:02:59
5 volts the battery 00:03:08
5, I don't remember 00:03:14
10, 25 and 5 00:03:21
this is 10 00:03:24
25 and 5 00:03:27
This is the circuit, this is our virtual ammeter, and to measure the current through this lamp, L2, we only have to do this 00:03:47
And it says 0.20 amps 00:03:59
This is the same as it says here in the paper activity 00:04:03
0.2 amps 00:04:11
But I prefer to use this ammeter, this is more or less the real ammeter, and so we need to connect the ammeter in the circuit 00:04:16
That is good, if you do this, that is good, but I am going to use the real ammeter 00:04:31
okay for that we need to open the circuit this is the ammeter so we need to connect the ammeter 00:04:38
before the lamp or after the lamp as I have more space here I'm going to use this after the lamp 00:04:48
Ok, I'm going to eliminate this and now here the ammeter 00:04:57
So the current has to enter the ammeter, goes inside the ammeter and continues, comes out of the ammeter 00:05:11
Here and there 00:05:29
This is the real thing 00:05:33
So, as you can see, the current, of course, is exactly the same, 0.20 amps 00:05:36
And this is the way we can measure current in a circuit 00:05:43
And that's all. Thank you 00:05:48
Subido por:
Maximino R.
Licencia:
Reconocimiento - Compartir igual
Visualizaciones:
79
Fecha:
24 de abril de 2020 - 14:27
Visibilidad:
Público
Centro:
IES ALFREDO KRAUS
Duración:
05′ 52″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
26.42 MBytes

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