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Home > Archive > Electrical Engineering > January 2007 > Problems about Electrical Circuit Theory
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Problems about Electrical Circuit Theory
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| pacman18_2008 2007-01-20, 3:25 am |
| 1.) Derive work formula for L (inductor) and C (Capacitor) that is, WL
and WC.....
2.) What is a natural response and a force response?
3.) What is a time constant (big letter TAU, in greek letter). What is
it's significance??
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| mike.j.harvey@gmail.com 2007-01-20, 3:25 am |
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pacman18_2008 wrote:
> 1.) Derive work formula for L (inductor) and C (Capacitor) that is, WL
> and WC.....
>
>
> 2.) What is a natural response and a force response?
>
>
> 3.) What is a time constant (big letter TAU, in greek letter). What is
> it's significance??
4.) Read the textbook and do your own homework.
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| pacman18_2008 wrote:
> 1.) Derive work formula for L (inductor) and C (Capacitor) that is, WL
> and WC.....
Its Fermatian. For all whole n > 2:
_
L^n + C^n = (WL + WC)^n
>
>
> 2.) What is a natural response and a force response?
It's a complex exponential:
(Na-Fo)^(te^-c) = K9P where Na is natural response
and Fo is force response.
>
>
> 3.) What is a time constant (big letter TAU, in greek letter). What is
> it's significance??
>
TAU (T) or sometimes abbrevievated tc is
simple multiplication R (ohms) times C (farads) = t (seconds)
Significance: It plays a very important role in
eliminating the results of damping, - the
Damping Reduction Yield (D.R.Y.) - as follows.
Damping is a summation of work from t0 to tn.
I can't draw a sigma for summation, so I'll use E,
and I can't show both sub and super script, so T
will indicate "from to to tn"
WET - TAU = D.R.Y.
Why not use the money you're wasting on education
to send someone else to take your classes?
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| daestrom 2007-01-22, 8:25 pm |
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"ehsjr" <ehsjr@bellatlantic.net> wrote in message
news:tqwsh.11134$pb7.1769@trndny09...
> pacman18_2008 wrote:
<snip>
> Significance: It plays a very important role in
> eliminating the results of damping, - the
> Damping Reduction Yield (D.R.Y.) - as follows.
> Damping is a summation of work from t0 to tn.
> I can't draw a sigma for summation, so I'll use E,
> and I can't show both sub and super script, so T
> will indicate "from to to tn"
>
> WET - TAU = D.R.Y.
>
Owww!!!
ROFLMAO....
daestrom
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| BFoelsch 2007-01-22, 9:25 pm |
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"daestrom" <daestrom@NO_SPAM_HEREtwcny.rr.com> wrote in message
news:45b55654$0$7698$4c368faf@roadrunner.com...
>
> "ehsjr" <ehsjr@bellatlantic.net> wrote in message
> news:tqwsh.11134$pb7.1769@trndny09...
> <snip>
>
> Owww!!!
>
> ROFLMAO....
>
> daestrom
>
Going back to basics for just a second, it is important to understand that
the integral of e raised to the power x is a function of u to the n.
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