E-learning video for kids

Transcript

Note: Transcripts are generated using speech recognition software and may contain errors.
a very good morning toe. All the lovely Children out there I know you all are eagerly waiting for the session. Like how I'm really excited to meet all of you. Okay. Without further ado, let's die Winter. Today's topic, shall we? All right now, before moving further, I think you need to answer this million dollar question. What's today's topic? I'm not going to tell you so directly. So let me do one thing. I'll give you certain hints you need to find today's topic. Okay. All right. So the first hand for us, it is arguably one of the greatest discoveries that we have witnessed in our lifetime. Okay, that's not enough, because it's a very broad hint. All right, second, hunters, it's an integral part of our life. And we use a daily. Mm. Any guesses? I think some off. You must have guessed it, right? Yes, it's electricity. Or you can call it us electric current. Our ancestors relied on fire for light, warmth and cooking. Are we doing that today? No, we're the lucky ones. Well, at the flick of a switch, turn off a na, but push of a button. We have instant power all this is possible because off one thing electric current. Do you know what is current? Well, electric current is a rate off. Low off electrons in a conductor. Very simple. Here. You need to highlight these words. Flow off electrons. There s a unit off electric current is ampere. Now, before moving further, we need to understand more about electrons. Electrons are minute particles that exist within the molecular structure off a substance. At this point, I want you guys to remember the session where we discussed about nucleus, protons, neutrons and electrons. Remember? I hope you remember right. So, protons being the positively charged neutrons being neutral, Onda electrons being the negatively charged particles. I hope you remember, right. Okay. As faras electric current is concerned, we are going to focus only on the electrons. Okay, Alright, Sometimes these electrons are tightly held and the other times they are loosely held. It can happen both ways. When electrons are loosely held by the nuclear's, they're able to travel freely within the limits of the body. Electrons are negatively charged particles. Hence, when they move, a number of charges moves on. We call this movement off electrons as electric current. Now, please note one very important point here. Some materials allow current to move better than others. So based on this ability, off materials to conduct electricity materials are classified into two main types. Conductors and insulators. Yes. I can already see some kids scratching your heads thinking Okay, So where have we heard these terms? Conductors. Insulators. Now let's learn a little bit. About what are conductors and water insulators with some examples. All right. Okay. Conductors are these materials that allow the free flow of electrons from one particle to another. Okay, the highlight word here is they allow free flow off electrons. Okay, on duh. This flow off electrons inside the conductor. This is what we call us electric current. As simple as that now, no. This point for the electrons to move freely. You know, inside the contractor, it needs some kind of a force, right? So such force, which will actually make the electrons to move around that forces nothing but your old age. So the force that is required to drive the current flow through the conductor is known as voltage. Now, let's discuss some of the examples of conductors. Our very own human bodies. One example. Onda. When we talk about metals, iron, silver and gold are some of the examples of conductors and especially silver. I think silver is considered as a best conductor off electricity. Now let's look at the other classifications that ISS insulators. Insulators are materials that restrict the free flow off electrons from one particle to another. So when you compare both conductors and insulators, they are pretty opposite, right? So conductors allow free flow of electrons and insulators. They restrict, they do not allow the free flow of electrons. And when we talk about the examples off insulators, some of the well known examples off insulators are wood plastics on glass. Okay, Children, I'm going to stop right here because I don't want to overwhelm you with loads of information. So I hope you know, you had fun listening to the session, and it's been very useful to you. I had great fun. See you next week. It's Patmos signing off, but by