Comment on Home renovations
one_knight_scripting@lemmy.world 17 hours ago-
Do yourself a favor, don’t ever touch a car battery. It will hurt and you will feel it. They show that in movies as torture for a reason. It’s not the voltage in this case, it’s the current. Those batteries are capable of 550 CCA (cold cranking amps). Warm that battery is 685 CA. In fact I think I would consider the car battery more dangerous.
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In alternating current the electrons move back and forth across the material similar to a wave striking the shore of a tropical beach… No one said anything about reflecting. Have you never been shocked by an outlet? Shoot, I grew up in a trailer with a short on the front door. If you touched the metal, it wouldn’t even hurt, but you’d certainly know.
Quatlicopatlix@feddit.org 10 hours ago
I am an electrical engineer i have touched plenty of 12v and 24v… If movies are you source for eletrical safety then yoi are a idiot…
Current has nothing to do with that because it doesnt matter that your car battery can supply 100 100000 or 10000GA 12V will not be enough to make a significant current flow through you because your skin and body resistence is way to high… basic like 6 grade physics with current=voltage/resistance (yea i know body is not purly resitive etc but its good enough) whoever said voltage doesnt kill but current does was a idiot… neither does its a combination of a bunch of factors that matter…current voltage time frequency etc…
I dont even need to write something for point 2 because you have shown to not know basic understanding about dc circuit analysis…wtf
one_knight_scripting@lemmy.world 9 hours ago
Hahaha. Ok, I thought you were a young child because you spelled battery differently and your take on everything I said the first time seemed childish. I told you not to touch a car battery because I thought you were a child. I still wouldn’t personally touch it, but that’s not what’s funny. You are NOT an electrical engineer. YOU ARE A STUDENT, lmao, I thought you might be a child and I wasn’t far off.
Your German, correct? I fixed aircraft in Germany, and you are only a student. Ever work on 115 VAC @ 400Hz 3 Phase? Ever work on C-130 avionic systems? What about B-1’s?
There is actually a lot of stuff I miss about Germany, too. Döner Kabob… God I miss those, they were my favorite. Oh and the German ice cream. Also the beer… I miss a good Dunkel. Keep studying you’ll be an electrical engineer soon.
o7
TheOakTree@lemmy.zip 3 hours ago
What does any of this have to do with the car battery situation? You can lick your fingers and touch each end of a car battery with a hand. It won’t hurt you, much less kill you. You are ignoring the resistance of the path the current needs to travel. Without enough potential difference, the current has no reason to pass through the body.
The level to which you fail to understand a basic concept while brandishing your credentials is a bit embarassing. There are certainly many others with the same or lesser amount of experience than you who understand this scenario better than you do.
Note that nowhere in my critique have I attacked or undermined your claimed experience, nor have I made any attacks on your character. Besides this: you are acting like a child.
one_knight_scripting@lemmy.world 2 hours ago
Nope, you are right, I was not familiar with the resistance of the human body and I was wrong.
Quatlicopatlix@feddit.org 9 hours ago
if you really judge someone about spelling mistakes and typos on a platform that people use on phones where it is super easy to mistype something well then i cant help you… also why are you calling others child if this is your reaction to what i wrote? You had the most childish reaction i saw on here for a long time.
With what you wrote i woild bet that anny ee student that passes the first semester has more knowledge than you… and no i am not a student annymore i graduated with a bachelors end of last year :)) Also if if i still were a student that would still make me a lot more qualified than you, because before going to uni i had a 3,5 years apprenticeship as mechatronics technician that made me a “elektrofachkraft” so i am qualified to work with industrial systems up to 1000V.
If you really worked on all those systems you said you did and dont know the basics about how voltage current and resistance relate to each other it would be very sad…
one_knight_scripting@lemmy.world 8 hours ago