Plasma TV power cord question ????

[Yautja]

I was wondering if someone knew the purpose of a Cable Ferrite ?
These things are usually attatched on your power cord of your TV, my TV unit came with one & kept wondering what the purpose of it is & what other Hi Fi equipment should have them ?
Picture below shows what they look like:

[Yautja]

No one ?
BUMP

[scweb13]

Intermark Ferrite Cores Products

Ferrite Cores, sometimes called "Ferrite Beads," are clipped onto cables in order to suppress high frequency noise levels in electronic signals. Ferrite Cores are important for ensuring strong electronic signals through cables in environments where electromagnetic interference can be a problem. The energy Ferrite Cores collect is converted to heat and dissipated.

Ferrite Cores are among the most inexpensive means to reduce EMI in an environment involving preexisting electronic cabling. Some Ferrite Cores require the cable or wire to be wrapped around 6 or 7 times within the core, while other Ferrite Core products simply snap around an existing wire.

They are cheap and effective noise suppressors. Hope that helps you out.