a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

1. Consider a charged capacitor whose plates are separated by air (dielectric constant 1.00). The capacitor is electrically isolated from its surroundings (meaning that the terminals of the capacitor are not touching anything). A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the capacitance of the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

2. Consider a charged capacitor whose plates are separated by air. The capacitor is electrically isolated from its surroundings (meaning that the terminals of the capacitor are not touching anything). A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the charge on the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

3. Consider a charged capacitor whose plates are separated by air. The capacitor is electrically isolated from its surroundings. A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the voltage across the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

4. Consider a charged capacitor whose plates are separated by air. The capacitor is electrically isolated from its surroundings. A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the energy stored in the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

5. Consider a charged capacitor whose plates are separated by air. The capacitor is connected across an ideal battery. A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the voltage across the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

6. Consider a charged capacitor whose plates are separated by air. The capacitor is connected across an ideal battery. A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the charge on the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

7. Consider a charged capacitor whose plates are separated by air. The capacitor is connected across an ideal battery. A person slips some plastic in between the plates without changing the plate separation. The plastic has a dielectric constant of 2.00 and it completely fills the region between the plates. What happens to the energy stored in the capacitor? a) It doubles. b) It becomes one half of what it was. c) It stays the same. d) None of the above.

8. Consider a charged capacitor whose plates are separated by air. A person increases the separation of the plates while keeping the plates electrically isolated from each other and the surroundings. What happens to the charge of the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.

9. Consider a charged capacitor whose plates are separated by air. A person increases the separation of the plates while keeping the plates electrically isolated from each other and the surroundings. What happens to the voltage across the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.

10. Consider a charged capacitor whose plates are separated by air. A person increases the separation of the plates while keeping the plates electrically isolated from each other and the surroundings. What happens to the energy stored in the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.

11. Consider a charged capacitor whose plates are separated by air. A person uses a power supply to maintain a constant potential difference between the plates while she increases the separation of the plates. What happens to the voltage across the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.

12. Consider a charged capacitor whose plates are separated by air. A person uses a power supply to maintain a constant potential difference between the plates while she increases the separation of the plates. What happens to the charge of the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.

13. Consider a charged capacitor whose plates are separated by air. A person uses a power supply to maintain a constant potential difference between the plates while she increases the separation of the plates. What happens to the energy stored in the capacitor? a) It increases. b) It decreases. c) It stays the same. d) None of the above.