jonnyGURU Forums
Home Site Search Reviews Articles Contest Links PSU FAQs  


Go Back   jonnyGURU Forums > General Electronics > Electronic Theory and Principle

Electronic Theory and Principle Discussion of electrical theory, law, etc.

Reply
 
Thread Tools Display Modes
  #11  
Old 08-03-2012
dish_moose dish_moose is offline
micro ATX User
 
Join Date: Apr 2012
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default

^+1 If things were too easy people without iron rings on their fingers could do it too. ;-)
-Bruce
Reply With Quote
  #12  
Old 12-22-2017
ashiekh's Avatar
ashiekh ashiekh is offline
20W User
 
Join Date: Oct 2017
Location: Grand Junction
Posts: 540
Thanks: 0
Thanked 40 Times in 39 Posts
Default

Quote:
Originally Posted by jonnyGURU View Post
Thanks smart ass. I got an A in algebra, perfect score on the exam and was a programmer for some years. That's not the point of my question.

I was just wondering if I could apply it to the electrical equations because the paper I was looking at was clearly trying to differentiate P = I^2 * R and V = I * R and I can't for the life of me understand why.
P = I * V is always true, V = I * R (Ohm's law) is not always; they are independent equations.

One can use Ohm's law to get variations

P = V^2/R
P = I^2 * R

but these depend on Ohm's law, and so are not always true; as such it is best to see the last 2 as derived, and not fundamental.
Reply With Quote
The Following User Says Thank You to ashiekh For This Useful Post:
jonnyGURU (12-22-2017)
Reply

Thread Tools
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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PSU 101: Electrical Basics jonnyGURU PC Power Supply Discussion 1 01-10-2011 11:22 PM
Quick, stupid, repetitive....."Will this PS work for me?" question... C'DaleRider PC Power Supply Discussion 9 02-04-2009 10:40 AM
Electrical Buzzing Noise From PSU johnnyl168 PC Power Supply Discussion 2 12-16-2008 08:02 AM
Single 12v railed PSU question about electrical "noise" HKPolice PC Power Supply Discussion 2 01-29-2008 12:18 PM
,,Stupid,, question. Oranje PC Power Supply Discussion 2 09-23-2007 04:03 AM


All times are GMT -4. The time now is 10:16 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright © JonnyGURU.com 2000 -