Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-17-2012, 01:23 PM   #1
Member
 
Join Date: Nov 2011
Posts: 81
Share |
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


AC = house = V~
DC = car = V--

I only use my MM 2x a year, so it's not a habit.
How did you memorize this?
Any clever tricks/mnemonics?

Mathlete is online now   Reply With Quote
Old 12-17-2012, 01:30 PM   #2
Member
 
Join Date: Sep 2012
Location: Western PA
Posts: 203
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by Mathlete View Post
AC = house = V~
DC = car = V--

I only use my MM 2x a year, so it's not a habit.
How did you memorize this?
Any clever tricks/mnemonics?
AC is alternating current, the voltage moves up and down = ~

DC is direct current, the voltage does not fluctuate = ---

Dave632 is offline   Reply With Quote
Old 12-17-2012, 01:43 PM   #3
Member
 
Join Date: Dec 2009
Location: Springfield OH
Posts: 768
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


I have no special tricks for remembering a house is AC while a car is DC. I guess part of my core knowledge includes this bit of trivia. I also remember that batteries are DC, which tends to help me remember that car electrical systems are generally DC (at least when fed via the battery). I also pretty regularly notice on power supplies and electrical applicanes that input power is usually specified as AC (100-250VAC, 50/60hz, for example), which I take as a reminder that household power is, in fact, AC. The hum in some lighting and audio equipment could also act as a reminder that we are near AC power.
oberkc is offline   Reply With Quote
Old 12-17-2012, 03:22 PM   #4
A "Handy Husband"
 
rjniles's Avatar
 
Join Date: Feb 2007
Location: South Carolina Low Country
Posts: 3,945
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by Mathlete View Post
AC = house = V~
DC = car = V--

I only use my MM 2x a year, so it's not a habit.
How did you memorize this?
Any clever tricks/mnemonics?
Really not trying to be cruel or snide but if you can't remember that very simple thing, you should not be working on electrical equipment.
__________________
Location:
Coastal South Carolina
rjniles is offline   Reply With Quote
The Following 3 Users Say Thank You to rjniles For This Useful Post:
brric (12-17-2012), Kapriel (12-24-2012), Kpack (12-17-2012)
Old 12-17-2012, 03:26 PM   #5
TTW
Member
 
TTW's Avatar
 
Join Date: Nov 2012
Location: Maine
Posts: 350
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Get a sharpie and write it on the back of your meter...
__________________
#1 - If you don't know what you're doing - get a licensed electrician!
#2 - If you follow my advice and something bad happens see # 1
Electricity bites hard, and it could be the last thing you feel... Good Luck!
TTW is offline   Reply With Quote
Old 12-17-2012, 08:39 PM   #6
Field Service
 
Join Date: Nov 2012
Location: Chicago
Posts: 145
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by Mathlete View Post
How did you memorize this?
To be honest I think the symbols are representative of what you're measuring as Dave632 mentioned.

Quote:
Originally Posted by Dave632 View Post
AC is alternating current, the voltage moves up and down = ~

DC is direct current, the voltage does not fluctuate = ---
diystephen is offline   Reply With Quote
Old 12-17-2012, 11:46 PM   #7
TTW
Member
 
TTW's Avatar
 
Join Date: Nov 2012
Location: Maine
Posts: 350
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Just remember AC - Atlantic City, lots of houses, it's on the wavy ocean ~ ~ ~ ~ ~~~~~~

DC - Death Certificate (you're flat) ---------------------------------------------

Daimler Chrysler is a car and it's nicer to drive on straight flat roads?
It's hard to Drive Carefully with a flat tire?

Just a try...

Asking an electrician is kinda like asking someone who drives a car what a stop sign looks like.


Try to think of something that will mean some to you personally.
__________________
#1 - If you don't know what you're doing - get a licensed electrician!
#2 - If you follow my advice and something bad happens see # 1
Electricity bites hard, and it could be the last thing you feel... Good Luck!
TTW is offline   Reply With Quote
The Following User Says Thank You to TTW For This Useful Post:
Mathlete (12-23-2012)
Old 12-18-2012, 07:10 AM   #8
Member
 
Join Date: Sep 2008
Location: Oregon
Posts: 1,497
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by TTW View Post
...Asking an electrician is kinda like asking someone who drives a car what a stop sign looks like...
Right! Or which pedal in a car is the accelerator and which is the brake.

Things I use everyday, I remember. Things I seldom use, I forget.

With that said, I seldom wire up phone jacks. And I forget the wire color codes for multi-line cables (Lines 1, 2, 3, 4). With that said, I have a phone and cable TV tool box and in that tool box I have a printed sheet with those color codes on it.

So tape a note on your multimeter. Or if you keep it in a tool box, stick a note in there.
Billy_Bob is offline   Reply With Quote
The Following User Says Thank You to Billy_Bob For This Useful Post:
mpoulton (12-18-2012)
Old 12-18-2012, 07:27 PM   #9
Member
 
Join Date: Nov 2011
Posts: 128
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Ahhh... remember the good 'ol days when multimeters simply said AC volts and DC volts? The symbols on my new fluke threw me off for a second or two as well after I first bought it and I've been using meters since I was a kid....
kwilcox is offline   Reply With Quote
Old 12-18-2012, 10:07 PM   #10
JOATMON
 
ddawg16's Avatar
 
Join Date: Aug 2011
Location: S. California
Posts: 6,856
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Maybe you don't need to remember which is which....hook it up...try both modes...the one that gives you the highest value is most likely the mode you want to be in.....

Now...if your doing that with a battery....and you have it on AC.....you might want to start running.....the flux capacitor is about to go.
__________________
"The dream is free but the hustle is sold separately."

My 2-Story Addition Build in Progress Link ... My Garage Build Link and My Jeep Build Link
ddawg16 is online now   Reply With Quote
Old 12-19-2012, 06:33 AM   #11
Member
 
Join Date: Feb 2010
Location: Oklahoma
Posts: 978
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by Mathlete
How did you memorize this?
Any clever tricks/mnemonics?
I used my brain to memorize it. By the way, memorization is the simplest (lowest) form of learning.
jlmran is offline   Reply With Quote
Old 12-23-2012, 01:08 PM   #12
Member
 
Join Date: Nov 2011
Posts: 81
Default

Multimeter: Memory trick to remember (AC = house = V~) vs. (DC = car = V--) ?


Quote:
Originally Posted by TTW View Post
Just remember AC - Atlantic City, lots of houses, it's on the wavy ocean ~ ~ ~ ~ ~~~~~~
.
That is perfect, and exactly what I was looking for. Thank you!!!

I have memorized this 5 times, and I have forgotten it 5 times, b/c I use my MM about once every 2 years.
I have to re-Google this crap every time. No more!


Let's test myself right now:
AC = Houses = ~~
DC = cars = ----- (the dashes look like the highway divider marks)


Last edited by Mathlete; 12-23-2012 at 01:10 PM.
Mathlete is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
My house's previous owner - DIY horror stories Leah Frances General DIY Discussions 128 03-18-2014 06:41 AM
Attaching wood fence to house TheCowGod Building & Construction 5 04-13-2012 03:57 PM
Attach ledger to vinyl sided house JamyTheBuilder Building & Construction 3 03-14-2012 02:54 PM
Mast and weatherhead pulled from house, conflicting information from POCO subcontract SleepnZJ Electrical 1 11-02-2011 09:39 PM
I have Central Heating & Air, but house won't cool down..HELP!! exiledone1 HVAC 13 07-10-2009 10:09 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.