Ok b4 we move further to next discussion, i just wanna share with u tis video..its another magical world of magnet..
it is called the magnetic levitation theorem of Earnshaw. Dont worrry, u wont be learning this in SPM.
If u r interested in electrical/electronics engineering course..than u've the chance to dig it deeper..
lets get back to business..the next thing u need to know is
To describe the application of electromagnets such as:
1. Door bell
2. Magnetic Relay circuit
3. Speakers
4. Microphone
All these applications can be asked in paper 2( section A / B / C)., especially in essay section.
U can refer your reference book, or from the electromagnet note , pg 4 as provided in this blog. U must understand how does each device works.
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Showing posts with label 3.1 Analysing Electromagnet. Show all posts
Showing posts with label 3.1 Analysing Electromagnet. Show all posts
Sunday, April 19, 2009
Thursday, April 16, 2009
How to make an Electromagnet?
Chapter 3 is a very interesting topic, trust me.. u can create so many cool stuff using magnet.
Magnetic field is something mysterious.. some magician used the concept to trick everyone.
U can also try some interesting stuff.. Just look at this video ,
In electromagnet, there's only few calculation and formula involved. Therefore u must really understand the concept. However there's lots of important Rules & Law which need to be fully understood. Please dont try to memorise everything without knowing the real story
3.1: Analysing the Magnetic of Current Carrying Conductor
1. First, u must be able to state what an electromagnet is??
An electromagnet is a temporary magnet produced on iron core when a coil of wire is wrapped around it. Current is supplied along the wire which then produces magnetic field. The iron become magnetized temporarily.
Look at video 3.1. This short video helps you understand how electromagnets turn electricity into magnetism.
Video 3.1
Magnetic field is something mysterious.. some magician used the concept to trick everyone.
U can also try some interesting stuff.. Just look at this video ,
3.1: Analysing the Magnetic of Current Carrying Conductor
1. First, u must be able to state what an electromagnet is??
An electromagnet is a temporary magnet produced on iron core when a coil of wire is wrapped around it. Current is supplied along the wire which then produces magnetic field. The iron become magnetized temporarily.
Look at video 3.1. This short video helps you understand how electromagnets turn electricity into magnetism.
Video 3.1
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