Capacitors Quiz

When a capacitor is connected to a battery, what primarily happens to the plates of the capacitor?

• Electrons accumulate on both plates

• Positive charge accumulates on one plate, and negative charge accumulates on the other plate

• The capacitor starts discharging

• The potential difference between the plates becomes zero

After a capacitor is charged by a battery and then disconnected, if the plates are brought closer together, what happens to the potential difference between the plates?

• It decreases

• It remains the same

• It increases

• It becomes zero

After a capacitor is fully charged by a battery and then disconnected, what happens to the stored charge?

• The charge dissipates quickly

• The charge remains on the plates

• The capacitor starts discharging

• The capacitor's capacitance decreases

What is the relationship between the electric field (EE) and the potential difference (VV) in a parallel plate capacitor with a plate separation of dd?

• E=V/dR

• E=V⋅dE

• E=V×d2E

• E=V+dE

If the area of the plates of a parallel plate capacitor is doubled while it is connected to a battery, what happens to the capacitance?

• It remains the same

• It doubles

• It halves

• It becomes zero

If a capacitor is charged by a battery and then disconnected, what determines the electric field between the plates?

• The distance between the plates and the charge on the plates

• The battery's voltage and the charge on the plates

• The capacitance and the battery's voltage

• The distance between the plates and the capacitance

Which of the following is a correct representation of the charge Q on a capacitor with capacitance C and potential difference V?

• Q=CV

• Q=V/C​

• Q=V×d

• Q=C+V

If the separation between the plates of a parallel plate capacitor is doubled while it's connected to a battery, what happens to the capacitance?

• It remains the same

• It doubles

• It halves

• It becomes zero

If a capacitor is fully charged by a battery and then disconnected, and then the plate separation is doubled, what happens to the potential difference across the plates?

• It doubles

• It halves

• It remains the same

• It becomes zero

If a parallel plate capacitor is fully charged by a battery and then disconnected, what happens to the electric field between the plates if the distance between the plates is increased?

• It decreases

• It remains the same

• It increases

• It becomes zero