Linear Second-Order Equations Find the current in the RLC circuit, assuming that E(t) = 0 for t > 0 R = 4 ohms; L = .05 henrys; C = .008 farads; Q0 = -1 coulombs; I0 = 2 amperes I need help to finding the current

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Linear Second-Order Equations

Find the current in the RLC circuit, assuming that E(t) = 0 for t > 0

R = 4 ohms; L = .05 henrys; C = .008 farads; Q0 = -1 coulombs; I0 = 2 amperes

I need help to finding the current

We have
Pulting all
Let I
the differential equation,
=
the values
d²f
0.05
dt² +
+80.
80 det inte
we
4
dt2
be the trial
Hence general sollution,
have
det s
+
dt
Aext
Hence auxiliary equation,
-> x =
+2500 1 = 0
I(t) =
sollution of
I
0.008
x =
e
L
-802
-40t
d²I
dt²
c
9² +80x + 2500
80
di
R = + = = 0
곧
dt
2
+ R
=0
4x2500
- 40 ± 30
{ c₁cos (30t) + C₂ sin (30+)}
[c1, c₂
are constants ]
Transcribed Image Text:We have Pulting all Let I the differential equation, = the values d²f 0.05 dt² + +80. 80 det inte we 4 dt2 be the trial Hence general sollution, have det s + dt Aext Hence auxiliary equation, -> x = +2500 1 = 0 I(t) = sollution of I 0.008 x = e L -802 -40t d²I dt² c 9² +80x + 2500 80 di R = + = = 0 곧 dt 2 + R =0 4x2500 - 40 ± 30 { c₁cos (30t) + C₂ sin (30+)} [c1, c₂ are constants ]
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