Solved: A parallel-plate capacitor filled with air carries
Chapter 26, Problem 9(choose chapter or problem)
A parallel-plate capacitor filled with air carries a charge Q . The battery is disconnected, and a slab of material with dielectric constant k 5 2 is inserted between the plates. Which of the following statements is true? (a) The voltage across the capacitor decreases by a factor of 2. (b) The voltage across the capacitor is doubled. (c) The charge on the plates is doubled. (d) The charge on the plates decreases by a factor of 2. (e) The electric field is doubled.
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