Believe it or not, some things ain’t that useful to be known, but it is fun to read about the WHY part. No matter how much vague something appears, it is always there for a reason. Same is the case with the small cylinder at the posterior end of your laptop’s charger. I know, you only notice it now. That’s how ignorant we humans are!
Read on to know what is the use of the tiny cylinder.
So, you’ve been using your laptop for years.
And, most of the time, it is plugged in to an electricity socket.