When my laptop is plugged into the charger and I gently run my finger over it, it vibrates slightly. The laptop itself is actually stationary, and I can't hear anything. What's causing this?
(3 votes)
Loading...Hello, I've recently been having a problem where, on my e-bike, the motor support stops working at the highest support levels (4-5) when I exceed 25 km/h. I then have to restart the computer on the handlebar to get the motor running again. I bought the bike used six months ago without a battery key,…
Hi, I've included a picture of a fairly "simple" circuit here. The problem involves power matching and is as follows: a) How large should RL be so that maximum power is converted into RL? According to the solution, I calculated this correctly with 1 kOhm, since (R1+R2)||R3. In b), however, it's about calculating the maximum…
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Hello!
I also know this from other devices with a metallic surface.
If it bothers you, there is a tip that works almost always! Pull the plug out of the can and plug it in again.
Why it’s usually gone, I can’t explain technically. I think I have something to do with the phases of the current. But maybe someone can explain it better.
This can also be electric charges you feel when hoermirzu hasn’t gotten right. Or is it the cooling fan?
Without wanting to say something, it could be on any coils that vibrate on their iron core.