A parallel plate capacitor with air between the plate has a capacitance of 15 pF. The separation between the plate becomes twice and the space between them is filled with a medium of dielectric constant 3.5. Then the capacitance becomes pF. The value of is ____ .
Answer: 105
Solution
The air-filled capacitor has pF. Doubling the separation to and filling the gap with a dielectric of constant gives pF. Writing this as pF gives .
JEE Main · 2023 · 24 Jan 2023 · Shift 2 · Integer answer