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- Newsgroups: misc.consumers.house
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!caen!batcomputer!cornell!uw-beaver!torerik
- From: torerik@cs.washington.edu (Tor Erik Jeremiassen)
- Subject: Re: Power and current
- Message-ID: <1993Jan26.035807.21347@beaver.cs.washington.edu>
- Sender: news@beaver.cs.washington.edu (USENET News System)
- Organization: Computer Science & Engineering, U. of Washington, Seattle
- References: <C1Bq16.2EA@math.okstate.edu> <25427@galaxy.ucr.edu>
- Date: Tue, 26 Jan 93 03:58:07 GMT
- Lines: 23
-
- In article <25427@galaxy.ucr.edu> judson@watserv.ucr.edu writes:
- >In article <C1Bq16.2EA@math.okstate.edu> dunne@math.okstate.edu (Ed Dunne)
- >writes:
- >> If I have an appliance with a heating element rated at 850 watts, how
- >> much current (in amps) is it going to draw in a standard 110V circuit?
- >
- >
- >P*V=I
- >thus,
- >(110 V) * (.850 Kw) = 93.5 A
- >
-
- This is clearly wrong.
-
- 93.5 A is about an order of magnitude larger than the real answer.
-
- The correct formula is:
-
- P = V * I <==> I = P / V, therefore I = 850 W/110 V = 7.7 A
-
-
-
- Tor Jeremiassen
-