Q1) A metal wire has a resistance of 10.0 at a temperature of 20,0 °C. If...

Q1) A metal wire has a resistance of 10.0 at a temperature of 20,0 °C. If the same wire has a resistance of 12.0 at 90.0 °C, what is the resistance of this wire when its temperature is –40.0 °C?

Q2) A parallel-plate capacitor filled with air carries a charge Q. The battery is disconnected, and a slab of material with dielectric constant k = 2 is inserted between the plates. Which of the following statements is true?

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genius_generous answered 1 year ago

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