(d) The change in the resonant frequency for a small change in the inductance, AL, and capacitance, AC, is given by = Co, AL+ A®, ƏL -AC Use your result from (c) to derive an expression for A@o.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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hi, can you help me with parts D only?

not the rest of them only D!

thank you

The current, I, in an RLC circuit is given by the equation:
R
d²I
dI
+ 2a
-+ oI = 0
(1)
dt?
dt
V
where the damping factor, a, and resonant frequency, o,
- Vo +a² ,
are dependent on the values of the resistor, R, capacitor, C, and
inductor L:
1
R
and @, =
2L
a =
VLC
A solution of equation (1) is given by
-at
I(t)
= e
sin ot
(2)
(a) Determine the first and second derivatives of Ilt) and hence show that /(t) is a
solution of equation (1).
(b) Show that the stationary points of
ur at time t:
tan ot =
a
(c) Determine the partial derivatives
రిo్ do
(d) The change in the resonant frequency for a small change in the inductance, AL, and
capacitance, AC, is given by
AL +
ÔL
Δωρ
-AC
Use your result from (c) to derive an expression for Awo.
Transcribed Image Text:The current, I, in an RLC circuit is given by the equation: R d²I dI + 2a -+ oI = 0 (1) dt? dt V where the damping factor, a, and resonant frequency, o, - Vo +a² , are dependent on the values of the resistor, R, capacitor, C, and inductor L: 1 R and @, = 2L a = VLC A solution of equation (1) is given by -at I(t) = e sin ot (2) (a) Determine the first and second derivatives of Ilt) and hence show that /(t) is a solution of equation (1). (b) Show that the stationary points of ur at time t: tan ot = a (c) Determine the partial derivatives రిo్ do (d) The change in the resonant frequency for a small change in the inductance, AL, and capacitance, AC, is given by AL + ÔL Δωρ -AC Use your result from (c) to derive an expression for Awo.
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