A parallel plate air capacitor is charged and then isolated. When a dielectric material is inserted between the plates of the capacitor, then which of the following does not change?

Question

A parallel plate air capacitor is charged and then isolated. When a dielectric material is inserted between the plates of the capacitor, then which of the following does not change? (A) Electric field between the plates (B) Potential difference across the plates (C) Charge on the plates (D) Energy stored in the capacitor

Tardigrade Admin · Accepted Answer

Capacitor is first charged then isolated, so the charge on the capacitor becomes constant.

Q. A parallel plate air capacitor is charged and then isolated. When a dielectric material is inserted between the plates of the capacitor, then which of the following does not change?

Electric field between the plates

Potential difference across the plates

Charge on the plates

Energy stored in the capacitor

Capacitor is first charged then isolated, so the charge on the capacitor becomes constant.