Re: Joules - Vrms or Vp (fwd)

To: tesla-at-pupman-dot-com
Subject: Re: Joules - Vrms or Vp (fwd)
From: Tesla List <mod1-at-pupman-dot-com>
Date: Tue, 28 Jul 1998 10:03:24 -0600 (MDT)
Approved: mod1-at-pupman-dot-com



---------- Forwarded message ----------
Date: Tue, 28 Jul 1998 16:08:30 +0000
From: steinkamp <steinkamp-at-iee.uni-hannover.de>
To: Tesla List <tesla-at-pupman-dot-com>
Cc: steinkamp-at-iee.uni-hannover.de
Subject: Re: Joules - Vrms or Vp (fwd)

> Date:          Mon, 27 Jul 1998 20:56:44 -0600 (MDT)
> To:            tesla-at-pupman-dot-com
> Subject:       Joules - Vrms or Vp (fwd)
> From:          Tesla List <tesla-at-pupman-dot-com>

> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 27 Jul 1998 18:30:28 -0500
> From: "Barton B. Anderson" <mopar-at-uswest-dot-net>
> To: Tesla List <tesla-at-pupman-dot-com>
> Subject: Joules - Vrms or Vp
> 
> To List,
> 
> Regarding the calculation for Joules..... J = 1/2 x C x
> V^2.
> 
> Should V = Vp or should V = Vrms? Why? (if you know).
> 
> All responses welcome,
> 
> Bart
> 
> Hi bart,

if yu regard the energy of a capacitor with DC and voltage V

yu get J = 1/2 C*V^2.

regarding the problem using AC-Voltage yu get a changing value for J 
from 0 to max = 1/2 C*Vp^2.
It is Jmax = 1/2 C*Vp^2 = C*Vrms^2.
okay?

regards  stone



Dr. Wolfram Steinkamp, Akad. Oberrat
Institut fuer Elektrische Energieversorgung
Universitaet Hannover
Fax.: 0511 762 2369
Tel.: 0511 762 2305 (2804)
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