A Parallel-Plate Air-Filled Capacitor Is Made from Two Plates That $0.070 \mathrm {~m}$

question 73

Short Answer

A parallel-plate air-filled capacitor is made from two plates that are $0.070 \mathrm {~m}$ on each side and spaced $9.2 \mathrm {~mm}$ apart. What must the potential difference between the plates be to produce an energy density of $0.062 \mathrm {~J} / \mathrm { m } 3$ in the region between them? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \right.$ $\left. \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

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Definitions:

Total Current Assets

The sum of all assets of a company that are expected to be converted into cash or used within one year or within the operating cycle.

Equity Multiplier

A financial ratio indicating the proportion of a company's assets that are financed by shareholders' equity, used to assess financial leverage.

Du Pont Identity

A formula that breaks down return on equity into three component parts: profit margin, asset turnover, and financial leverage.

Profit Margin

A financial ratio that shows the percentage of revenue that exceeds the cost of goods sold, indicating the efficiency of a company in generating profit.