Ex. 177. Given R= E= 3 volts DC source, and a switch - all in series. 7 Ohms, C= 6 Farads, 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' (t) + A Vc (t) = B, where Vc' (t) is the first derivative of Vc (t). Determine A, and B. В, ans:2
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