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A useful tool for dealing with high frequency magnetic effects is the complex permeability. While at low frequencies in a linear material the magnetic field and the auxiliary magnetic field are simply proportional to each other through some scalar permeability, at high frequencies these quantities will react to each other with some lag time. [36]
Magnetic field (green) created by a current-carrying winding (red) in a typical magnetic core transformer or inductor, with the iron core C forming a closed loop, possibly with air gaps G in it. The drawing shows a section through the core. The purpose of the core is to provide a closed high permeability path for the magnetic field lines.
Arcade Game Construction Kit is a 1988 game creation system for making action video games. [1] [2] It was developed by Mike Livesay and published by Broderbund for the Commodore 64 on four floppy disks. The program uses a joystick-driven menu system and includes six pre-made games to learn from and play.
Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are noticeably attracted to a magnet, which is a consequence of their substantial ...
They also have high magnetic permeability. These so-called ceramic magnets are cheap, and are widely used in household products such as refrigerator magnets . The maximum magnetic field B is about 0.35 tesla and the magnetic field strength H is about 30–160 kiloampere turns per meter (400–2000 oersteds ). [ 33 ]
This core effectively concentrates the magnetic field of the radio waves [6] to give a stronger signal than could be obtained by an air core loop antenna of comparable size, although still not as strong as the signal that could be obtained with a good outdoor wire aerial. Other names include "loopstick antenna", "ferrod", and "ferrite-rod antenna".
Shoot-'Em-Up Construction Kit (a.k.a. SEUCK) is a game creation system for the Commodore 64, Amiga and Atari ST created by Sensible Software and published by Outlaw (part of Palace Software) in 1987. It allows the user to make simple shoot 'em ups by drawing sprites and backgrounds and editing attack patterns.
Different materials have different saturation levels. For example, high permeability iron alloys used in transformers reach magnetic saturation at 1.6–2.2 teslas (T), [4] whereas ferrites saturate at 0.2–0.5 T. [5] Some amorphous alloys saturate at 1.2–1.3 T. [6] Mu-metal saturates at around 0.8 T. [7] [8]