If \( \mathrm{P} \) and \( \mathrm{V} \) are the power and potential of a device, then the power...

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If \( \mathrm{P} \) and \( \mathrm{V} \) are the power and potential of a device, then the power used with a supply potential \( V_{1} \) is
a. \( \frac{\mathrm{V}_{1}^{2}}{\mathrm{~V}^{2}} \mathrm{P} \)
b. \( \frac{\mathrm{V}}{\mathrm{V}_{1}} \mathrm{P} \)
c. \( \frac{\mathrm{V}^{2}}{\mathrm{~V}_{1}^{2}} \mathrm{P} \)
d. \( \frac{\mathrm{V}_{1}}{\mathrm{~V}} \mathrm{P} \)
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