Inductive Coil

Of course ac can pass through an inductive coil. There is impedance to its "flow", but that's not the same as "no flow". Even an ordinary piece of wire has inductance; yet ac current flows.

Yes, it does, but It all has to do with the inductor's value, load resistance, and the frequency of the AC signal. There are other factors, too. However, the amount of AC signal passed depends on those factors, in general.

Here is a link on INDUCTANCE that explains the details.

It's about how it is wound and the core material. You should study inductance if you really want to know the answer to your question.

http://en.wikipedia.org/wiki/Inductance

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/induct.html

http://electronics.howstuffworks.com/inductor.htm

Dear Kiran, It may also surprise you to know that heater manufacturers, wrap coils of wire …. calibrated to a certain resistance and rate them at a particular voltage, in order to achieve a specified wattage per unit area. Warmest Regards, Ray