Home
Class 12
PHYSICS
Two charged spherical conductors, each o...

Two charged spherical conductors, each of radius R, are distant `d (d lt 2R) .` They carry charges +qand -q will the force of attraction between them be exactly ` (q^(2))/(4pi in _0d^(2)) ` ? Give reasons of your answer.

Text Solution

Verified by Experts

No , the force of attraction between charged spherical conductors will be more than `(q^(2))/(4pi in _0d^(2)) ` . On account of mutual attractive force there will be a redistribution of charges on the spheres as shown in As a result, effective distance between them is reduced and the force increases.
` (##U_LIK_SP_PHY_XII_C01_E09_001_S01.png" width="80%">
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    U-LIKE SERIES|Exercise LONG ANSWER QUESTIONS -I|30 Videos

  • ELECTRIC CHARGES AND FIELDS

    U-LIKE SERIES|Exercise LONG ANSWER QUESTIONS -II|9 Videos

  • ELECTRIC CHARGES AND FIELDS

    U-LIKE SERIES|Exercise VERY SHORT ANSWER QUESTIONS|39 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST SECTION-C (VERY SHORT ANSWER QUESTIONS)|3 Videos

  • ELECTROMAGNETIC WAVES

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION C)|1 Videos

Similar Questions

Explore conceptually related problems

Two charged spherical conductors of radius R_1 and R_2 are connected by a wire. Then the ratio of surface charge densities of the spheres (sigma_1)/(sigma_2) is

Two concentric spherical conducting shells of radii r and R (r lt R ) carry charges q and Q respectively . The two shells are now connected by a conducting wire. The final charge on the inner shell is

Knowledge Check

  • In a parallel-plate capacitor of plate area A , plate separation d and charge Q the force of attraction between the plates is F .

    A
    `F propQ^(2)`
    B
    `F prop 1/A`
    C
    `F prop d`
    D
    `F prop 1/d`

  • Two spherical conductors A and B of radii R and 2R respectively are each given a charge Q. When they are connected by a metallic wire. The charge will

    A
    flow from A to B
    B
    flow from B to A
    C
    remain stationary on conductor
    D
    none of these

  • Two conducting spheres of radii R each are given equal charges +Q and are kept such that their centre are at distance r (geR) . The force of attraction (F) between them is:

    A
    `(KQ^(2))/r^(2)`
    B
    `(KQ^(2))/(r+2R)^(2)`
    C
    `(KQ^(2))/r^(2)ge Fge (KQ^(2))/(r-2R)^(2)ge Fge(KQ)/r^(2)`
    D
    `(KQ^(2))/(r-2R)^(2)g t F g t (KQ)/r^(2)`

    • Similar Questions

    Explore conceptually related problems

    Two charged spherical conductors of radii R_1 and R_2 when connected by a conducting wire acquire charges q and c/2 respectively. Find the ratio of their surface charge densities in terms of their radii.

    Two large conduction spheres carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of the force between them exactly given by Q_(1)Q_(2)//4piepsilon_(0)r^(2) . Where r is the distance between their centers.

    Two conducting hollow spherical shells of radius R and 2R carry charges -Q and 3Q respectively. How much charge will flow into the earth if inner shell is grounded?

    A spherical conducting shell of radius r_(0) carry a charge q_(0) . Then value of electric field inside it is :-

    In the following question a statement of assertion (A) is followed by a statement of reason (R ) A : Two large conducting spheres carrying charges Q_(1) and Q_(2) are brought close to each other. The magnitude of electrostatic force between them is exactly given by Q_(1) Q_(2)// 4 pi epsilon_(0) r^(2) , where r is the distance between their centres. R: Here charges Q_(1) and Q_(2) can be assumed to be concentrated at the centres of their respective spheres.

    Home
    Profile