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Which of the following statement(s) is/a...

Which of the following statement(s) is/are correct ?

A

If the electric field due to a point charge varies as `r^(-2.5)` instead of `r^(-2)`, then the Gauss law will still be valid.

B

The Gauss law can be used to calculate the field distribution around an electric dipole.

C

If the electric field between two point charges is zero somewhere, then the sign of the two charges is the same.

D

The work done by the external force in moving a unit positive charge from point a at potential `V_(A)` to point B at potential `V_(B)` is `(V_(B)-V_(A))`.

Text Solution

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The correct Answer is:
C
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RESONANCE ENGLISH-ELECTROSTATICS-Exercise - 3 Part - I
  1. A uniformly charged thin spherical shell of radius R carries uniform s...

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  2. A tiny spherical oil drop carrying a net charge q is balanced in still...

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  3. Consider an electric field vecE = E0hat x, where E0 is a constant. The...

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  4. A spherical metal shell A of radius RA and a solid metal sphere B of r...

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  5. A wooden block performs SHM on a frictionless surface with frequency v...

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  6. Which of the following statement(s) is/are correct ?

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  7. Consider a thin spherical shell of radius R with its centre at the ori...

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  8. Six point charges are kept at the vertices of a regular hexagon of sid...

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  9. Two nonconducting solid spheres of radii R and 2R, having uniform volu...

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  10. Two nonconducting spheres of radii R1 and R2 and carrying uniform volu...

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  11. Charges Q, 2Q and 4Q are uniformly distributed in three dielectric sol...

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  12. Let E1(r), E2(r) and E3(r) be the respectively electric field at a dis...

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  13. Four charges Q(1),Q(2),Q(3) and Q(4) of same magnitude are fixed alo...

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  14. An infinitely long uniform line charge distribution of charge per unit...

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  15. The figure below depict two situations in which two infinitely long st...

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  16. Consider a unifrom spherical charge distribution on of radius R(1) ...

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  17. A point charge +Q is placed just outside an imaginary hemispherical su...

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  18. An infinitely long thin non-conducting wire is parallel to the z-axis ...

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  19. A particle , of mass 10^(-3) kg and charge 1.0C, is initially at r...

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  20. The electric field E is measured at a point P (0, 0, d) generated due ...

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