Home
Class 12
PHYSICS
A fixed circle of radius a and cnetre ...

A fixed circle of radius a and cnetre O is drawn anda charge `+q_(1)` is placed at a distance `((3a)/(4))` from O on a line through O and perpendicular to plane of circle. And a second charge `q_(2)` is similarly placed at a distance `(5a)/(12)` on the opposite side of circle.

If the values of `q_(1)` and `q_(2)` are `+q, - 2q` respectively now a third charge `-q` has to be placed on line AB so that is can be stable equilibrium .The distance of point where third charge is placed from charge q, wouldbe ( take `a= 12 cm )`.

A

`( 14)/( sqrt( 2) - 1)`cm

B

`( 14) /(sqrt(2) + 1) cm`

C

`( 14) /(2sqrt(2) +1) ` cm

D

`-q` cannot be in stable equilibrium atany point

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION E(ASSERTION -REASON TYPE QUESTIONS)|10 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-F ( Matrix-Match Type Questions)|5 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-D(LINKED COMPREHENSION TYPE QUESTIONS) COMPHREHENSION-1|3 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|10 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

Similar Questions

Explore conceptually related problems

A fixed circle of radius a and cnetre O is drawn anda charge +q_(1) is placed at a distance ((3a)/(4)) from O on a line through O and perpendicular to plane of circle. And a second charge q_(2) is similarly placed at a distance (5a)/(12) on the opposite side of circle. If the net flux through circle is zero, then (q_(1))/(q_(2)) would be

A point charge +q, is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of the plane is

A point charge +q is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of plane is

A point charge +q is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of plane is

Two point charges +q and -q are placed a distance x apart. A third charge is so placed that at the three charges are in equilibrium. Then

Two charges +4e and +e are at a distance x apart. At what distance,a charge q must be placed from charge +e so that is in equilibrium

Two charges +4e and +e are at a distance x apart. At what distance,a charge q must be placed from charge +e so that is in equilibrium

Two point charges +4q and +q are placed at a distance L apart. A third charge Q is so placed that all the three charges are in equilibrium. Then location. And magnitude of the third charge will be

If O is the centre of a circle with radius r and AB is a chord of the circle at a distance r/2 from O, then /_BAO=

A point charge q is placed at a distance a//2 directly above the centre of a square of side a . The electric flux through the square is