Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

A parallel plate capacitor with air between the plates has a capacitance of 9 pF. What will be the capacitance if the distance between the plates is reduced to half and the space between them is filled by a substance of dielectric constant 7?

Options:

1.3 pF

31.5 pF

63 pF

126 pF

Correct Answer:

126 pF

Explanation:

The correct answer is Option (4) → 126 pF