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Function: require_once
4 Multiple Choice 1 point A parallel-plate capacitor filled with air carries a charge
Q. The battery is disconnected, and a slab of material with dielectric constant
k=2is inserted between the plates. Which of the following statements is true? The voltage across the capacitor decreases by a factor of 2 . The electric field is doubled. The charge on the plates decreases by a factor of 2 . The charge on the plates is doubled. The voltage across the capacitor is doubled. ear my selection