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A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated...

A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated by a distance of 0.25 mm, and the space between the plates is filled with a dielectric with dielectric constant κ. When the capacitor is charged to 1.2 µC, the potential difference between the plates is 750 V. What is the value of κ?

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