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- If you heat a gas that runs 600 A of current across a 15 V potential difference, how long in minutes do you need to run the current to raise the temperature?Two 3.8microF capacitors, two 2.2kohms resistors and a 16.0V source are connected in series. Starting from the uncharged state, how long does it take for the current to drop from its initial value to 1.50 mAA 22-gauge copper wire has a radius of 0.645 mm, is 5.00 m long, and has a resistivity r = 1.72 ´ 10-8 ohm-m. The maximum current for which this wire is rated is 0.920A. What is the maximum electric potential difference that may be applied to this wire without overloading it ?
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