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6 Oct 2020
A parallel-plate capacitor filled with air carries a charge Q. The battery is disconnected, and a slab of material with dielectric constant κ=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 charges on the plates is doubled.
(d) The charge on the plates decreases by a factor of 2.
(e) The electric field is doubled.
A parallel-plate capacitor filled with air carries a charge Q. The battery is disconnected, and a slab of material with dielectric constant κ=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 charges on the plates is doubled.
(d) The charge on the plates decreases by a factor of 2.
(e) The electric field is doubled.
Shelley Sundae NaparotaLv10
19 Nov 2020
