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What is the intensity of the electric fi...

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

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AB and CD are two perpendicular diameters of a circle of circumference 20pi cm. There are +10 esu, +10 esu, +10 esu and -10 esu of charges at A, B, C and D respectively. What is the Intensity of electric field at the centre O of the circle? What is the direction of the field?

Four point charges +q,+q,+q and -q are placed at the four comers of a square, length of each side of which is a. Find the magnitude of the intensity of the electric field at the centre of the square.

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.

Show that the intensity of the electric field at an external point due to a uniformly charged thin spherical shell is the same as if the whole charge were situated at its centre.

In vacuum, three small spheres are placed on the circumference of a circle of radius r in such a way that an equilateral triangle is formed. If q be the charge on each sphere, determine the intensity of electric field and potential at the centre of the circle.

If a conductor is placed in an electric field, what change of the intensity of the electric field take place inside the conductor ?

If a dielectric is placed in an electric field, what change of the intensity of the electric field takes place inside the dielectric?

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere respectively are

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere respectively are

A thin spherical shel of radius R is charged with +q amount of charge. Use Gauss' law to find out the magnitude of the intensity of the electric field at a distance r from the centre of the shel, where (a) rlt R and(b) r gtR (ii) Show graphically how the magnitude of the intensity of the electric field changes with distance r from thke centre of the shell.

CHHAYA PUBLICATION-ELECTRIC FIELD-EXERCISE ( VERY SHORT ANSWER TYPE QUESTIONS )
  1. Which physical quantity has the unit v m^(-1) ?

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  2. Two point charges e(1) and e(2) are placed at a distance d from each o...

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  3. What is the intensity of the electric field at the centre of a charge...

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  4. The direction of electrostatic field intensity at a point on the surf...

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  5. If a conductor is placed in an electric field, what change of the inte...

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  6. The electric field intensity at all points in a uniform electric field...

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  7. The field lines in a uniform electric field are lines. [Fill in the b...

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  8. Three small spheres are placed on the circumference of a circle of rad...

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  9. A few field lines moving from left converge on the right side. The ele...

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  10. The field lines of an isolated negative charge are radially . [fill in...

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  11. What is the ratio of the intensity of the electric field at a particlu...

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  12. How should an electric dipole be kept in an electric field so that no ...

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  13. Is the dipole moment a scalar or a vector quantity ?

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  14. What is the unit of dipole moment in SI ?

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  15. An electric dipole is inclined with a uniform electric field. State wh...

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  16. What is the resultant electric force on an electric dipole placed in a...

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  17. What is the dipole moment of a non-polar molecule ?

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  18. The torque acting on an electric dipole placed in a uniform electric f...

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  19. An electric dipole of moment p is placed in equilibrium position in a ...

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  20. If electric flux linked with a surface is maximum , what will be the a...

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