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Subido el 27 de marzo de 2020 por Maximino R.

133 visualizaciones

How to measure the voltage drop across a lamp in a series circuit

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Hello, I'm going to do one of the compulsory activities we have in this lesson, in this unit, unit 4 00:00:01
ICT activities, electric circuits, here we have two different parts, circuit diagrams and the Ohm's law 00:00:10
I'm going to do one of them 00:00:22
The AMS law refers to the way of connecting a voltmeter in parallel with a resistor and an ammeter here 00:00:24
We need to open the circuit to connect the ammeter 00:00:38
The circuit is this one, the series circuit, paper activity 18 00:00:42
First I'm going to do it without looking at this activity 00:00:48
To connect the voltmeter, we need to use this simulator 00:00:53
So I click here 00:00:59
And now what I have to do is to draw this circuit 00:01:01
The series circuit made up of a battery and three different lamps 00:01:07
Here in the circuit we are going to use this lamp and all the lamps are the same lamp 00:01:15
It doesn't matter in order to know how to connect the voltmeter 00:01:22
So we have this lamp, another lamp, this other lamp 00:01:27
And I need to use wires to complete the circuit 00:01:34
This wire and two more, one and two 00:01:38
So when I switch off, switch on the switch 00:01:44
I see that the lamps are lighting up 00:01:50
Ok, now 00:01:54
what the instructions say is 00:01:57
after drawing the circuit, we need to 00:02:02
use the voltmeter to measure voltage drop across L2 00:02:06
L2, so the voltage drop 00:02:11
between B and C 00:02:15
the second lamp, this lamp 00:02:17
here we have the multimeter, the voltmeter 00:02:20
and meter and everything 00:02:25
so, voltmeter is here, I click here 00:02:27
to measure voltage, and for that 00:02:33
we need to close the circuit, now current is 00:02:37
flowing through the circuit 00:02:41
But if we want to change the voltage, here we have a 6 volt battery, so we can change this value, 6 volts 00:02:44
And now what I have to do is to connect in parallel the voltmeter with this lamp, lamp number 2, this way 00:02:56
Ok, first, I'm going to see if the voltmeter is working 00:03:06
The battery is a 6-volt battery, so I can check this. I connect the probe, this one and two probes, here, and I see that it's working. 00:03:13
So the voltage drop across these two points in the circuit is 6 volts. But what I have to measure is the voltage drop across this lamp. So here and there, 2 volts. 00:03:31
It's clear because, as I said, the lamps are equal, so each of them has a voltage drop of 2 volts. 00:03:52
2 plus 2 plus 2, 6 volts in total. 00:04:05
Okay, thank you. 00:04:10
Subido por:
Maximino R.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
133
Fecha:
27 de marzo de 2020 - 21:11
Visibilidad:
Público
Centro:
IES ALFREDO KRAUS
Duración:
04′ 15″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
7.95 MBytes

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