A 0.5-F capacitor has a current waveform i(t) as shown in Figure P3–9. Determine and plot the voltage waveform v(t) as a function of time. The capacitor is initially uncharged. 3-9 penco9-20 A ooul aa tolq bas and oie FIGURE P3-9 i(t) 2 A 3 6. -2 A

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### Problem 3-9 Analysis

A 0.5-F capacitor has a current waveform \(i(t)\) as shown in Figure P3-9. We need to determine and plot the voltage waveform \(v(t)\) as a function of time. The capacitor is initially uncharged.

#### Current Waveform Description

The graph depicts the current waveform \(i(t)\) over time, indicated by the following segments:

- From \(0\) to \(3\) seconds, the current \(i(t)\) is constant at \(2 \text{ A}\).
- From \(3\) to \(6\) seconds, the current linearly decreases from \(2 \text{ A}\) to \(-2 \text{ A}\).
- From \(6\) to \(9\) seconds, the current is constant at \(-2 \text{ A}\).

#### Task

Using this current waveform, determine the corresponding voltage waveform \(v(t)\) across the capacitor, applying the relationship for capacitors:

\[ v(t) = \frac{1}{C} \int i(t) \, dt \]

Where \(C = 0.5 \text{ F}\).

1. Calculate the integral of \(i(t)\) over each time segment to find the change in voltage.
2. Determine \(v(t)\) by integrating the waveform and considering the initial uncharged state (initial voltage is zero).
3. Plot the voltage waveform \(v(t)\) over the same time intervals.
Transcribed Image Text:### Problem 3-9 Analysis A 0.5-F capacitor has a current waveform \(i(t)\) as shown in Figure P3-9. We need to determine and plot the voltage waveform \(v(t)\) as a function of time. The capacitor is initially uncharged. #### Current Waveform Description The graph depicts the current waveform \(i(t)\) over time, indicated by the following segments: - From \(0\) to \(3\) seconds, the current \(i(t)\) is constant at \(2 \text{ A}\). - From \(3\) to \(6\) seconds, the current linearly decreases from \(2 \text{ A}\) to \(-2 \text{ A}\). - From \(6\) to \(9\) seconds, the current is constant at \(-2 \text{ A}\). #### Task Using this current waveform, determine the corresponding voltage waveform \(v(t)\) across the capacitor, applying the relationship for capacitors: \[ v(t) = \frac{1}{C} \int i(t) \, dt \] Where \(C = 0.5 \text{ F}\). 1. Calculate the integral of \(i(t)\) over each time segment to find the change in voltage. 2. Determine \(v(t)\) by integrating the waveform and considering the initial uncharged state (initial voltage is zero). 3. Plot the voltage waveform \(v(t)\) over the same time intervals.
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