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Alternating current and magnetic fields

by SweatingBear
Tags: alternating, current, fields, magnetic
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pumila
#19
Mar30-13, 02:41 PM
P: 114
The forces on the compass are identical for ac and DC for the same instantaneous current. So the only difference in the response is the inertia of the compass. For high frequencies the compass inertia will reduce the compass response dramatically.
sahil2309
#20
Apr9-13, 12:46 AM
P: 17
Hey does anyone know how much will a 250MW generator cost?
sophiecentaur
#21
Apr9-13, 03:35 AM
Sci Advisor
Thanks
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sophiecentaur's Avatar
P: 12,256
An arm and a leg.
sahil2309
#22
Apr9-13, 03:46 AM
P: 17
Ohhhh can u lend me yours??
sophiecentaur
#23
Apr9-13, 03:56 AM
Sci Advisor
Thanks
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sophiecentaur's Avatar
P: 12,256
I only wish I could help you. UK power industry is in too much of a bind, I'm afraid.
pumila
#24
Apr9-13, 04:05 AM
P: 114
Can't even afford the scrap value....
Francis2
#25
Apr9-13, 05:34 AM
P: 1
In the images below, the magnetic field strength is graphed versus distance from the center of the conductor. It can be seen that in a nonmagnetic conductor carrying , the internal field strength rises from zero at the center to a maximum value at the surface of the conductor. The external field strength decrease with distance from the surface of the conductor.









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