January 2013
Intermediate to advanced
598 pages
22h 47m
English
Content preview from Electrical Technology, Volume 1
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8
Electromagnetism
OBJECTIVES
In this chapter you will learn about:
- The magnetic field about a permanent magnet
- State the laws of magnetic attraction and repulsion for two magnets in close proximity
- Define magnetic terms such as magnetic flux ɸ, magnetic flux density B, and magnetic field strength or magnetizing force Η and state their units
- Define permeability, distinguishing between μ0, μr and μ
- Understand the B–H curve for different materials
- Perform calculations on magnetic circuits
- Compare electrical and magnetic quantities
- Understand that magnetic fields are produced by electric currents
- Apply the screw rule to determine the direction of electric field
- Recognize that the magnetic field about a solenoid is similar to that of a magnet ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.