megohm - Hutchinson encyclopedia article about megohm Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,579,583,836 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

ohm
(redirected from megohm)

    Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

ohm

SI unit of electrical resistance (the property of a conductor that restricts the flow of electrons through it).

It was originally defined with reference to the resistance of a column of mercury, but is now taken as the resistance between two points when a potential difference of one volt between them produces a current of one ampere.
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link 		Feedback
?Sign in SSL protected
Email:
Password:
Register

Mentioned in?  References in periodicals archive?   Hutchinson browser?   Full browser?
 
For many years, a lower limit in megohms was considered to be "1+1" - that is, one megohm for each kV of machine rating, plus one, as the lowest "safe" value (allowing continued operation).
Another look at insulation resistance by Richard L PE Nailen / Electrical Apparatus
If resistance increases to above one megohm and remains steady at high impedance, you've got a short.
Heater comes up short by PS, the Preventive Maintenance Monthly
In the comparator used at the Bureau of Standards this resistance is one half megohm.
Treasure of the Past: IV by Journal of Research of the National Institute of Standards and Technology
 
 
 
Hutchinson Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.