1
00:00:00,050 --> 00:00:02,290
Well, this is block number 9.

2
00:00:03,410 --> 00:00:05,889
You have to say which leads will work.

3
00:00:06,469 --> 00:00:09,349
So, as usual, take from the positive to the negative.

4
00:00:09,789 --> 00:00:15,050
From the positive, this one is not going to pass here.

5
00:00:15,210 --> 00:00:17,530
The intensity is not going to pass, but this one, yes.

6
00:00:17,929 --> 00:00:20,350
So, number 2 is going to work.

7
00:00:20,550 --> 00:00:26,109
And this one, again, from the positive to the negative, this one is going to work.

8
00:00:26,269 --> 00:00:28,449
And this one is also going to work.

9
00:00:28,449 --> 00:00:33,289
In C, I'm going from the positive to the negative

10
00:00:33,289 --> 00:00:35,750
It is supposed that this one is going to work

11
00:00:35,750 --> 00:00:39,469
We continue, this one is not going to work

12
00:00:39,469 --> 00:00:43,170
And number 3 allows electricity to go through

13
00:00:43,170 --> 00:00:46,789
So 1, 3, and again you continue

14
00:00:46,789 --> 00:00:48,229
And 4 is going to work

15
00:00:48,229 --> 00:00:50,270
So here, 1, 3, and 4

16
00:00:50,270 --> 00:00:54,570
In this one, number 1, from the positive to the negative

17
00:00:54,570 --> 00:00:56,890
Number 1, it's supposed to be working

18
00:00:56,890 --> 00:01:02,829
number two no number three it's supposed but see here the difference number four

19
00:01:02,829 --> 00:01:13,989
makes this C kit to be open so none of them none are going to work in this

20
00:01:13,989 --> 00:01:17,790
exercise we have to say if the lamps will be working or not if they it will

21
00:01:17,790 --> 00:01:23,170
depend on the position of the diodes these are not LEDs these are diodes so

22
00:01:23,170 --> 00:01:27,430
from the positive to the negative in this first one there is a path okay so

23
00:01:27,430 --> 00:01:34,030
this one will be working in the second branch this diode makes that the

24
00:01:34,030 --> 00:01:38,409
electricity that cannot go through it so this one is not going to work and the

25
00:01:38,409 --> 00:01:43,870
third one is going to be lighting also in this exercise we are going to see we

26
00:01:43,870 --> 00:01:49,030
can see here that this LED it's avoiding the electricity to go through the rest

27
00:01:49,030 --> 00:01:53,469
of the circuit so none of the lamps will be working and finally in this exercise

28
00:01:53,469 --> 00:01:59,469
We have two potentiometers, so we can vary the resistance in these two resistors.

29
00:01:59,469 --> 00:02:05,469
In this first one, when I move the toggle of the resistor, the lamp will change the luminosity.

30
00:02:05,469 --> 00:02:11,469
And in this one, the speed of the motor will change, having into account its potentiometer.

31
00:02:11,469 --> 00:02:16,469
In this exercise, we have a lamp and a LED.

32
00:02:16,469 --> 00:02:23,550
a LED the lamp is connected to an LDR so depending into the with the lighting the

33
00:02:23,550 --> 00:02:30,469
light that is in the room this lamp will give more luminosity or less the bigger

34
00:02:30,469 --> 00:02:35,810
is the light the smaller is the resistance so this will be lighting more

35
00:02:35,810 --> 00:02:41,990
and here we have a thermistor that is a negative one so the bigger is the

36
00:02:41,990 --> 00:02:47,389
temperature, the lower is the resistance, the bigger is the temperature, the

37
00:02:47,389 --> 00:02:52,430
light here will be brighter.