Home
Class 12
PHYSICS
Two identical conducting spheres carry c...

Two identical conducting spheres carry charges of `+5.0 mu C` and `-10 mu C`, respectively. The centers of the spheres are initially separated by a distance L. The two spheres are brought together so that they are in contact. The spheres are then returned to their original separation L. What is the ratio of the magnitude of the electric force on either sphere after the spheres are touched to that before they were touched ?

A

`(1)/(1)`

B

`(9)/(5)`

C

`(4)/(5)`

D

`(5)/(1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    RESNICK AND HALLIDAY|Exercise Practice Questions (More than one correct Type )|3 Videos
  • ELECTRIC CHARGES AND FIELDS

    RESNICK AND HALLIDAY|Exercise Practice Questions (Linked Comprehension)|5 Videos
  • ELECTRIC CHARGES AND FIELDS

    RESNICK AND HALLIDAY|Exercise Problems|63 Videos
  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|3 Videos
  • ELECTRIC POTENTIAL

    RESNICK AND HALLIDAY|Exercise (PRACTICE QUESTIONS) Integer Type|1 Videos

Similar Questions

Explore conceptually related problems

A hollow insulated conducting sphere is given a charges +10 mu C . What will be the electric field at the centre of the sphere it its radius is 2m ?

Three identical spheres, each having a charge q and radius R. are kept in such a way that each touches the other two. The magnitude of the electric force on any sphere due to the other two is

Knowledge Check

  • Two identical non-conducting spheres having charges of -12 nC and + 8 nC are touched together and then separated. The 3 nal charge on each is

    A
    `- 2 nc`
    B
    `- ((2)/(3)) nc`
    C
    `+ 2 nC`
    D
    `+ 4 nC`
  • Two spheres are separately charged and then brought in contact, so

    A
    total charge on the two spheres is conserved
    B
    total energy of the two spheres is conserved
    C
    Both (a) and (b)
    D
    none of the above
  • Two identical conducting sphere carrying different charges attact each other with a force F when placed in air medium at a distance d apart. The spheres are brought into contact and then taken to their original positions. Now, the two sphere repel each other with a force whole magnitude is equal to the initial attractive force. The ratio between initial charges on the spheres is

    A
    `- (3 + sqrt8)` only
    B
    `-3 + sqrt8` only
    C
    `-(3 + sqrt8)` or `(-3 + sqrt8)`
    D
    `+ sqrt3`
  • Similar Questions

    Explore conceptually related problems

    Two identical spheres carrying charges -9 mu C and 5 mu C respectively are kept in contact and then separated from each other. Point out true statement from the following. In each sphere

    A hollow insulated conducting sphere is given a positive charge of 10 mu C . What will be the electric field at the centre of the sphere it is radius is 2 metres ?

    Two tiny conducting spheres are identical any carry charges of -20.0 mu C and +50.0 muC . They are separated by a distance of 2.50 cm. The spheres are brought into contact and then separated to a distance of 2.50 cm. Determine the magnitude of the force that each sphere now experiences, and state whether the force is attractive or repulsive.

    Two identical conducting spheres carrying different charges attract each other with a force F when placed in air at a distance d apart. The spheres are brought into contact with each other with a force whose magnitude is equal to that of the initial attractive force then the ratio between initial charges on the spheres is

    Two spherical conductors A and B of radii 1mm and 2mm are separated by a distance of 5 cm and are uniformly charged. If the spheres are connected by a conducting wire, then at equilibrium condition, the ratio of the magnitude of the electric fields at the surface of spheres A and B is