1. How many time-constants must elapse if an initially uncharged capacitor is to reach 80% of its potential difference (voltage)?
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Step 1: The voltage across a charging capacitor as a function of time is given by: $V(t) = V_0(1 - e^{-t/\tau})$ where: $V(t)$ is the voltage at time t $V_0$ is the initial voltage $\tau$ is the time constant $t$ is the time Show more…
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