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Two point charges placed in a medium of ...

Two point charges placed in a medium of dielectric constant 5 are at a distance r between them, experience an electrostatic force ‘F’. The electrostatic force between them in vacuum at the same distance r will be-

A

`(F)/(5)`

B

F

C

5F

D

`(F)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
As we know the relation
`(F_(n))/(F_(m))=KrArrF_(m)=(F)/(5)`
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Knowledge Check

  • If two charges are kept in a material of dielectric constant what is the ratio of force between them:

    A
    `16:1`
    B
    `2:1`
    C
    `4:1`
    D
    `1:1`

  • According to Coulomb’s law, the electrostatic force between two charges is

    A
    inversely proportional to the product of the charges
    B
    inversely proportional to the square of the distance between the charges
    C
    directly proportional to the cube of the distance between charges
    D
    none of these

  • If two charged spheres are immersed in a liquid of dielectric constant 2, how will the force between them vary?

    A
    F
    B
    `(F )/(4 )`
    C
    `(F )/(2)`
    D
    2 F

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