निम्नलिखित परावैद्युत (dielectric) पदार्थों में से, दिए गए भौतिक आयामों के संधारित्र के लिए सबसे कम धारिता (capacitance) किस माध्यम से प्राप्त होती है?

What is the main advantage of ceramic capacitors?

A dielectric slab is inserted between the plates of a parallel plate capacitor while the capacitor remains connected to a battery. What happens to the electric field (E) between the plates?

An uncharged isolated metal sheet is inserted between the plates of a parallel plate capacitor of capacitance C. If the sheet partly occupies the space between the plates without touching them, the new capacitance becomes: