Figure 4.15 gives the voltage, V (t), across a circuit element at time t seconds. For t
Chapter 4, Problem 4.2.36(choose chapter or problem)
Figure 4.15 gives the voltage, V (t), across a circuit element at time t seconds. For t < 0, the voltage is a constant 80 volts; for t 0, the voltage decays exponentially. (a) Find a piecewise formula for V (t). (b) At what value of t will the voltage reach 0.1?
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