ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 4 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Another problem #44354
11/02/04 12:40 PM
11/02/04 12:40 PM
A
AndyP  Offline OP
Member
Joined: Aug 2004
Posts: 20
The resistance of a circuit is 35 Ohms. The input is 240V. What is the resulting amperage?

I get 6.8571428

WOuld it be just 6.86?

Work Gear for Electricians and the Trades
Re: Another problem #44355
11/02/04 01:00 PM
11/02/04 01:00 PM
P
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Close enough for all practical purposes.

This assumes a purely resistive circuit. If it contains inductance and/or capacitance then the current will be affected by the reactance.

Also, in some cases the load resistance can change when power applied. If you measure the resistance of a heating element when cold for example, you could expect it to change a little once power starts flowing and it gets hot.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
The_Lightman
The_Lightman
Orlando, Fl, USA
Posts: 49
Joined: August 2001
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 16
Potseal 15
Popular Topics(Views)
243,574 Are you busy
180,374 Re: Forum
170,849 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.011s Queries: 14 (0.003s) Memory: 0.9403 MB (Peak: 1.0583 MB) Zlib enabled. Server Time: 2018-01-21 08:30:56 UTC