Question: Ex . 1 7 0 . Given R = 1 2 Ohms, C = 4 Farads, L = 5 Henries, V = 7 volts DC

Ex.170. Given R=12 Ohms, C=4 Farads, L=5 Henries,
V=7 volts DC, and a switch - all in series.
The switch closes at t=0. All initial values are zero.
The differential equation for the
voltage across the capacitor can be written as:
Vc_dot_dot + A Vc_dot + B Vc = D,
where Vc_dot is the first derivative of Vc(t) and
Vc_dot_dot is the second derivative of Vc(t).
Determine A, B, and D. ans:3

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