1.

Figure shown below is described by equation

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>dv</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>i</center></td><td rowspan="2">= 0</td></tr><tr><td style="text-align: center;">4</td><td style="text-align: center;">dt</td><td style="text-align: center;">4</td><td style="text-align: center;">2</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>dv</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v</center></td><td rowspan="2">-</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>i</center></td><td rowspan="2">= 0</td></tr><tr><td style="text-align: center;">4</td><td style="text-align: center;">dt</td><td style="text-align: center;">4</td><td style="text-align: center;">2</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>dv</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>i</center></td><td rowspan="2">= 0</td></tr><tr><td style="text-align: center;">3</td><td style="text-align: center;">dt</td><td style="text-align: center;">4</td><td style="text-align: center;">2</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>dv</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v</center></td><td rowspan="2">-</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>i</center></td><td rowspan="2">= 0</td></tr><tr><td style="text-align: center;">3</td><td style="text-align: center;">dt</td><td style="text-align: center;">4</td><td style="text-align: center;">2</td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>dv</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v</center></td><td rowspan="2">+</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>i</center></td><td rowspan="2">= 0</td></tr><tr><td style="text-align: center;">3</td><td style="text-align: center;">dt</td><td style="text-align: center;">4</td><td style="text-align: center;">2</td></tr></table>


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