Home
Class 12
PHYSICS
An uncharged sphere of metal is placed i...

An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force will look like

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
When an uncharged sphere of metal is placed in the uniform field of a parallel plate capacitor, due to the field, the negative charges will become concentrated at the top and the positive charges at the bottom, except for the field passing through the geometric centre, all the rest will be attached to the top and repelled by the charges (+ve below).
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PHYSICS

    KCET PREVIOUS YEAR PAPERS|Exercise MCQs|66 Videos

  • SOLVED PAPER 2011

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

How will you increase the capacitance of a parallel plate capacitor ?

Derive the expression for capacitance of parallel plate capacitor .

Knowledge Check

  • A simple pendulum has a length l and the mass of the bob is m. The bob is given a charge q coulomb. The pendulum is suspended between the vertical plate of a charged parallel plate capacitor. If E is the electric field strength between the plates, the time period of the pendulum is given by

    A
    `2pi sqrt((l)/(g))`
    B
    `2pi sqrt((l)/(sqrt(g+(qE)/(m))))`
    C
    `2pi sqrt((l)/(sqrt(g-(qE)/(m))))`
    D
    `pi sqrt((l)/(sqrt(g^(2)+((qE)/(m))^(2))))`

  • A compass needle is placed in the gap of a parallel plate capacitor. The capacitor is connected to battery through a resistance. The compass needle :

    A
    deflects and gradually comes to the original position in a time which is large compared to the time constant
    B
    does not deflect
    C
    deflects and remains deflected as long as the battery is connected
    D
    deflects for a very short time and then comes back to the original position.

    • Similar Questions

    Explore conceptually related problems

    On what factors does the capacitance of a parallel plate capacitors depends ?

    On what factors does the capacitance of a parallel plate capacitor depends?

    Obtain the expression for the energy stored in a charged parallel plate capacitro and express it in its three equivalent forms, in terms of capacitance C, charge Q on the plate and potential difference V between the plates. Use this result to show that the energy density, of the electric field E, in a capacitor equals 1/2varepsilon_0E^2 .

    Compare the capacitance of a parallel plate capacitor with and without the dielectric medium.

    How does electrical capacitance of a parallel plate capacitor depend on the distance between the plates ?

    What are like parallel forces ?

    Home
    Profile