What is the small cylindrical thing at the end of your laptop charger?
Have you ever thought why there exists a tiny little cylinder on your laptop charger? Keep reading to know...
These cylindrical shaped bumps are not only found in laptop chargers but also in many other cables, such as mouse, keyboard, monitor cables, printer cables, etc. These bumps are called as ferrite beads or ferrite chokes.
We all know that an electrical current passes through a charging cable in order to power up any device battery. Due to this electric current in the cable, it creates radio energy within itself and emits it in the form of waves outside the cable.
This phenomenon is similar to how an antenna works (converting an electrical power into radio energy and vice versa). Just like an antenna, this cable transmits and receives signals to or from surrounding gadgets with same capability. Due to this, the electric power gets used in unnecessary function and hinders charging the actual device.
Moreover, these signals can interfere with other electronic devices resulting in noisy signals such as a nearby radio gives distorted voice or does not tune up to a channel.
This is why a ferrite bead is inserted to a charger. It has the capability of blocking the emission of radio waves from the cable so that it uses electrical power for charging purpose only.
Posts before October 2021 have been marked as "Old Posts". Less likely, but they might have out dated or incorrect information, ugly looking bits of code, no labels, etc. Don't get me wrong, many of these posts are top-notch and interesting too.
I thought it would be better not to delete or revamp these posts, even if they suck. The bitter truth is that old works always suck, but I take that as a positive tool to convey that I am growing. Besides there's no better way to showcase my journey without these old, messy, poorly written posts!
I thought it would be better not to delete or revamp these posts, even if they suck. The bitter truth is that old works always suck, but I take that as a positive tool to convey that I am growing. Besides there's no better way to showcase my journey without these old, messy, poorly written posts!
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