Home
Class 12
PHYSICS
A sheet of aluminium foil of negligible ...

A sheet of aluminium foil of negligible thickness is placed between the plates of a capacitor of capacitance C as shown in the figure then capacitance of capacitor becomes

A

(a) decreases

B

(b) remains unchanged

C

(c) becomes infinite

D

(d) increases

Text Solution

Verified by Experts

The correct Answer is:
B
The capacitance of a parallel plate capacitor in which a metal plate of thickness t is inserted is given by
`C=(epsilon_A)/(d-t)`. Here `trarr0` `:.` `C=(epsilon_0A)/(d)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise Subjective Problems|2 Videos

  • ELECTROSTATICS

    SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise Comprehension Based Questions|2 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise JEE Main And Advanced|107 Videos

  • MODERN PHYSICS

    SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise MCQ (One Correct Answer|1 Videos

Similar Questions

Explore conceptually related problems

A highly conducting sheet of aluminium foil of negligible thickness is placed between the plates of a parallel plate capacitor. The foil is parallel to the plates. If the capacitance before the insertion of foil was 10 mu F , its value after the insertion of foil will be.

A metal foil of negligible thickness is introduced between the two plates of a capacitor at the centre. The capacitance of capacitor will be

A copper plate of thickness b is placed inside a parallel plate capacitor of plate distance d and area A as shown in figure. The capacitance of capacitor is

A dielectric slab is placed between the plates of a parallel plate capacitor. Its capacitance

A metal foll of negative thickness is intorduced between two plates of a capacitor at the center. What will be the new capacitance of the capacitance ?

In a parallel plate capacitor, the capacitance

If a thin metal foil of same area is placed between the two plates of a parallel plate capacitor of capacitance C, then new capacitance will be

What is capacitance of the capacitor shown in figure?

In above problem if foil is connected to any one plate of capacitor by means of conducting wire then capacitance of capacitor becomes -