WEBVTT 00:00.930 --> 00:01.530 Hello. 00:01.710 --> 00:08.940 So before we jump in to commercial and start making the circuit, let me explain you how council works 00:08.940 --> 00:10.140 in dealing with the circuit. 00:10.320 --> 00:13.270 So we already discussed the basic theory of the circuit. 00:13.500 --> 00:15.330 So let me just redraw the circuit. 00:15.700 --> 00:22.420 Uh, OK, so here we have the circuit and we generally need to add a ground in the circuit. 00:22.650 --> 00:29.470 So let me add, uh, resistance and then let me ground the circuit, OK? 00:29.880 --> 00:33.840 Now, the first thing comes in will find the nodes. 00:34.170 --> 00:38.280 So for each component, you need to have nodes where it is being connected. 00:38.760 --> 00:41.730 So let me just name denotes that this is one node. 00:42.090 --> 00:43.350 This is another node. 00:44.260 --> 00:47.630 Uh, the circuit, you know, the switch doesn't matter here. 00:47.940 --> 00:53.710 So this will be another node and these two nodes are connected. 00:54.000 --> 00:57.960 So basically, uh, these two nodes are same. 00:57.960 --> 00:58.290 Right. 00:58.950 --> 01:04.390 So here we have node and here we have the ground node. 01:04.940 --> 01:10.720 OK, and here for the ground, we might consider the node for the ground. 01:11.070 --> 01:15.990 So if we simplify this model, how does this look? 01:16.950 --> 01:25.140 So we have a water source, we have our resistance and then we have a capacitor. 01:25.980 --> 01:29.400 The capacitor is basically connected here. 01:30.090 --> 01:35.880 We have a register and then we have, uh, ground. 01:37.200 --> 01:39.210 So this is one. 01:39.630 --> 01:40.710 This is two. 01:41.160 --> 01:42.280 This is three. 01:43.320 --> 01:44.900 This point is four. 01:45.060 --> 01:47.380 And let's say at the end of the ground is five. 01:47.910 --> 01:49.940 So we have five nodes. 01:50.460 --> 01:53.910 So one and two, we have the voltage between one and two. 01:53.910 --> 01:54.750 Between two and three. 01:54.760 --> 01:57.990 We have the Reston's between three and one. 01:58.360 --> 02:01.890 We have the capacitor because, you know, this is the same wire. 02:01.900 --> 02:03.700 So we can write that. 02:03.700 --> 02:05.790 The one is basically this. 02:05.820 --> 02:07.440 So let me just erase this. 02:07.620 --> 02:16.140 OK, so between four and five, I use the ground and between one and four we have the R two. 02:16.200 --> 02:25.620 OK, so just remember the circuit and let's jump back to council and we'll try to make this circuit, 02:25.770 --> 02:26.370 OK? 02:26.400 --> 02:33.810 So now we are in the world of Khamsin and we have already added the physics for the electrical circuit 02:34.200 --> 02:38.270 and by default, always a ground naughties added. 02:38.280 --> 02:38.650 Right. 02:39.060 --> 02:43.470 So let's start we'll start by adding a voltage source. 02:43.680 --> 02:50.670 OK, because, uh, we had a folded source and we will name the node as one and two. 02:50.700 --> 02:53.160 OK, it is already named as one and two. 02:53.850 --> 02:56.490 And let's say the voltage is one four. 02:56.750 --> 02:58.380 OK, this is totally fine. 02:59.250 --> 03:00.330 And then we will. 03:00.330 --> 03:00.570 Right. 03:00.570 --> 03:11.040 Click on the circuit again and we will add the second component that is the disaster, and we will connect 03:11.040 --> 03:13.220 the resistor from two to three. 03:14.610 --> 03:18.990 So one side is two and the other side is three. 03:21.800 --> 03:30.470 OK, uh, now, while you solve a very complicated circuit, try to take a smaller loops and move from 03:30.470 --> 03:36.020 clockwise to anticlockwise or from anticlockwise to clockwise, just try to follow a pattern. 03:36.020 --> 03:40.070 Otherwise you might get confused and the default resistance is one. 03:40.880 --> 03:42.370 So this is fine. 03:42.380 --> 03:44.640 We are just, you know, learning this. 03:45.140 --> 03:47.210 We can change it anytime if we need to. 03:47.900 --> 03:52.760 So let me add a capacitor so either you can. 03:52.760 --> 04:00.350 Right click and add a capacitor or you can click on the electrical circuit at the top and then you have 04:00.350 --> 04:05.690 all the components you can select capacitor and the capacitor will be added in the physics. 04:06.440 --> 04:08.070 Similarly for the capacitor. 04:08.270 --> 04:13.640 We have three and it is connected to one. 04:15.080 --> 04:15.490 OK. 04:18.330 --> 04:27.870 And then we have another instr, so I click on Easter and Easter two is added, the second Easter is 04:27.870 --> 04:32.460 connected from one, the other end is connected to four. 04:33.760 --> 04:44.500 Right, and let it be one day or I'll just make it 10k fight and the ground, the ground is connected 04:44.500 --> 04:45.510 to four. 04:46.670 --> 04:49.510 OK, this is the single node which is the ground. 04:49.510 --> 04:52.840 So the ground is for we don't need five five. 04:53.410 --> 04:58.870 So now we need to study the circuit to study the circuit. 04:59.130 --> 05:06.510 Uh, we have to first look at the circuit and see if it is time dependent, if it is frequency dependent, 05:06.700 --> 05:08.470 what are the computers involved in it? 05:08.710 --> 05:10.740 Where do the residents curve occur? 05:10.750 --> 05:12.190 If there is any resonance? 05:12.520 --> 05:19.630 And if we want to study the charging upper capacitor, we have to see at what time range should we run 05:19.630 --> 05:25.900 the simulation so that we can clearly see the charging of the circuit and so on. 05:26.890 --> 05:33.640 So in my next lecture, we will add the study, which is very important. 05:33.670 --> 05:42.790 The settings in this study is very important because it actually depends on the circuit, which we are 05:42.790 --> 05:43.180 adding. 05:43.480 --> 05:52.050 So, for example, when you're working with thermal modules in so it is more or less time dependent. 05:52.270 --> 05:52.660 Right. 05:52.840 --> 05:57.790 But in electrical circuit, it could be dependent on multiple factors, depending on the components 05:57.790 --> 05:58.430 you are using. 05:59.110 --> 06:01.000 So, OK, uh. 06:03.060 --> 06:09.780 So we'll be back in our next lecture and in our next lecture, we'll learn how to study and then we 06:09.780 --> 06:11.490 will run our simulation.