ELECTRIC + MAGNETIC = ELECTROMAGNETIC *PART 2

Hello guys,

Lets continue with the previous EM Part 1 posted. As we already understand a very simple basic of electricity energy and current path, now it will lead us to magnetic part. As a conductor(previously green path) carrying a current flow through it will produce a magnetic field around it. A moving charge or electron will induce a magnetic field around it and vice versa. CLICK IMAGE TO ENLARGE

So that how magnetic field induced, as long as we have electron moving, there will be magnetic field induced around it path. So what can be used with magnetic field? Even kids know that magnet have abilities creating a push-pull forces depend on the poles orientation. We have north-south pole for magnet, ask you little-brother to solve it for you.

We are using this forces to create torque for electrical motor. To talk about how we can design an electric motor really take a lot of effort as we need to think and design carefully(base on my own experience building homemade dc motor) to manipulate this forces. Here a link for my friend dc motor project.

If you want more detail, you can read about Lorentz force. This part required a basic vector analysis and lots of equation. I will not go deep about this, it is a waste if we will not cover the basic very well. This article only for simple knowledge sharing. Enjoy Part 3 in progress.

ELECTRIC + MAGNETIC = ELECTROMAGNETIC *PART 1

Assalamualaikum.

Hi everybody, since I've got a request from a friend, so I would like to share with you a basic understanding of electric and magnetic. Hope with the simple example,people who are not involve in electric engineering will also understand how everything works. I'll try my best to make you understand it in the way of story rather than plain note or theory.All the diagram I draw here are free to shared.

Electric energy, I don't want to give the same defination like what you can find in wikipedia, This is what it look like from my understanding: CLICK TO ENLARGE IMAGE

That is the most basic part, I will try not to include any equation as the equation will mess out every simple thing. If you take an AAA batery, connect the +ve and -ve pole with a wire, you will get the diagram of green path above. The electron will flow from -ve pole to the positive while the current are opposite of that. For a long time of connection, the battery will become hot as it continuous release the electron through the wire as short-circuit loop.

At the end of the battery life, the potential of the battery usually 1.5V become only less than 0.5V. At this point,we said that the potential is going to be a ground level 0V or equalibrium pressure for spray can.Example above show the actual electricity application.Red arrow is the direction of current flow( +ve holes transition). Electron are moving through a thin filament which heated up and the energy of it are emitted as visible light photon. This is how light bulb operating. I don't want to put it more detail, as any question we can discussed it in comment below. If you found anything wrong inside this article, let me know as I can change it to be better and reliable. Thank you.
PART 2 for magnetic induction.

They are just another robots...

I'm really fanatic about robotic. Since I was in secondary school, I've trying to modified all my toys to functioning as what I want. It is start with a remote control car. The RC transmitter inside it give a lot of fun. I keep hacking the circuit and mount it on the handmade boat, firecracker rocket launcher, an even a homemade aeroplane(sure that will not flying until the end,hehehe).

Sometimes, it seem really a waste of time when I keep hacking the toys without any knowledge. Some of friends said to me, "you are wasting your time,better you go and study for your SPM". It really hurt to hear that.But for me, if everyone are the same as everyone, then what are the unique identities do we have?

When somebody critics you badly, then talk to yourself, "At least I can do something rather than you(that somebody) keep talking and have less output than me..". That was nothing to do with too much achievement, what do we care is about how much effort do we give to achieve something. If we think too much about people opinions, then we are not going anywhere. (^^)

This some of the robot I've build during studies in University of Malaya.

1. Photovore ( 2007), 1st year

2. 4 Legs BEAM ( 2008), 2nd year


3. Avoidroid ( 2008) , 3rd year

4. Mind 01 ( 2009), 3rd year


5. Metohexal 2.0 (2009), 3rd year