A A An air-gapped parallel plate capacitor with plate area A and plate separation d is charged to potential AV and then disconnected from the battery, as shown in Figure 1. A dielectric material is then inserted so that it completely fills the space between the plates without discharging the capacitor, as shown in Figure 2. The potential difference across the plates and the charge stored on the plates are measured before and after the dielectric is inserted between the plates. Which of the following correctly indicates how the electric field between the plates changes when the dielectric is inserted and provides experimental evidence to support the claim?