Cylinder At The End Of A Cable Cord
This cylinder is seemingly useless but it has a purpose. These ferrite cores or chokes are there to prevent high-frequency electromagnetic interference. An example of such interference is like the noise you hear when your mobile gets too close to a speaker.
Cylinder At The End Of A Cable Cord
Wings On Your Apple Power Cord
Those of you with a MacBook would have probably noticed the wings on the power cord. Those wings are there so you can wrap the cord around it. All you need to do is pull it up to keep your cable out of the way.
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Wings On Your Apple Power Cord
