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Re: Inductors and Current



At 11:26 AM 5/1/02, you wrote:
Let's say you have a battery, resistor and a coil in a circuit. The =
current in the circuit has reached a constant value. The coil won't =
have inductance because the current is not changing and inductors nee=
d a changing current to work. =20

The next part asks if the coil affects the value of the current in th=
e circuit. I believe that is would. As the current changes it adds m=
ore resistance but as the current is steady doesn't an inductor act l=
ike an ideal wire?

Okay so it wouldnt change the current. Right?
Tina (who has now confused herself)

Tina Fanetti
Physics Instructor
Western Iowa Technical Community College
4647 Stone Ave
Sioux City IA 51102
712-274-8733 ext 1429

Inductors are said to have inductance no matter what.
In practical cases, they also have resistance which is effective
in reducing standing current, as well as reactance, which impedes
only changing current.


Brian Whatcott
Altus OK Eureka!