Home
Class 12
PHYSICS
A circular copper ring of radius r, plac...

A circular copper ring of radius r, placed in vacuum, has charge q on it. The electric field intensity at the centre of the ring is `E_(1)`. The electric field intensity on the axis of the ring at a distance x from its centre is `E_(2)`. The value of `E_(2)` will be maximum when `x=x'`
What is the value of `E_(1)`?

A

0

B

`qxxpi r^(2)`

C

`qxx2pir^(2)`

D

`q/(r^(2))`

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • ELECTRIC FIELD

    CHHAYA PUBLICATION|Exercise ENTRACNCE CORNER ( INTEGER ANSWER TYPE )|4 Videos

  • ELECTRIC FIELD

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE (WBCHSE)|13 Videos

  • ELECTRIC FIELD

    CHHAYA PUBLICATION|Exercise ENTRACNCE CORNER (MULTIPLE CORRECT ANSWER TYPE )|10 Videos

  • ELECTRIC ENERGY AND POWER

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|7 Videos

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise CBSE Scanner|13 Videos

Similar Questions

Explore conceptually related problems

A circular copper ring of radius r, placed in vacuum, has a charge q on it. Find out the electric fields at the centre of the ring.

A circular copper ring of radius r, placed in vacuum, has a charge q on it. Find out the electric fields For what value of x would the electric field be maximum?

Knowledge Check

  • A circular copper ring of radius r, placed in vacuum, has charge q on it. The electric field intensity at the centre of the ring is E_(1) . The electric field intensity of the axis of the ring at a distance x from its centres is E_(2) . The value of E_(2) will be maximum when x=x' What is the value of E_(2) ?

    A
    `q/((x^(2)+r^(2))^(1//2))`
    B
    `(qx^(2))/((x^(2)+r^(2))^(3//2))`
    C
    `q/((x^(2)+r^(2))^(3//2))`
    D
    `(qx)/((x^(2)+r^(2))^(3//2))`

  • A circular copper ring of radius r, placed in vacuum, has charge q on ti. The electric field intensity at the centre of the ring is E_(1) . The electric field intensity of the axis of the ring at a distance x from its centres is E_(2) . The value of E_(2) will be maximum when x=x' What is the value of x' ?

    A
    `sqrt(2)r`
    B
    `r/(sqrt(2))`
    C
    `r/(sqrt(3))`
    D
    `sqrt(3)r`

  • A non conducting solid sphere of radius R is uniformly charged. The magnitude of electric field intensity due to the sphre at a distance r from its centre

    A
    increases as r increases for `r lt R`
    B
    decreases as r increases for `0 lt r lt oo`
    C
    decreases as r increases for `R ltr lt oo`
    D
    is discontinuous at `r=R`

    • Similar Questions

    Explore conceptually related problems

    A circular copper ring of radius r, placed in vacuum, has a charge q on it. Find out the electric fields on the axis of the ring at a distance x from its centre. ?

    What is the intensity of the electric field at the centre of a charged ring?

    A circular plate of radius r is placed parallel to a uniform electric field of intensity E . The flux linked with the circular plate is

    What is the electric field intensity at a distance r from a charge q placed in vacuum ?

    A straight rod of length l placed in vacuum is charged uniformly with an amount q of charge. Calculate the electric field intensity in SI at a point on the axis of the rod at a distance x from its nearer end. Write the result in CGS system also.

    Home
    Profile