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Three charges 2q, -q, and -q are located...

Three charges `2q, -q, and -q` are located at the vertices of an equilateral triangle. At the center of the triangle,

A

The field is zero but potential is not zero.

B

The field is non-zero but the potential is zero

C

Both, field and potential are zero

D

Both, field and potential are non-zero.

Text Solution

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The correct Answer is:
B
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MOTION-ELECTROSTATICS-Exercise -1 (Objective Problems | NEET)
  1. In a region where E = 0, the potential (V) varies with distance r as -

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  2. Charges of +(10)/(3) xx 10^(-9) C are placed at each of the four corne...

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  3. Three charges 2q, -q, and -q are located at the vertices of an equilat...

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  4. Three equal charges are placed at the three corners of an isoscles tri...

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  5. The electric potential V at any point ( x,y, z) in space is given by V...

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  6. The electric potential V is givne as a function of distance x (metre) ...

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  7. A unifrom electric field having a magnitude E(0) and direction along t...

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  8. When a charge of 3 coulombs is placed in a uniform electric field, it ...

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  9. The potential difference between points A and B in the given uniform e...

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  10. An equipotential surface is that surface on which each and every point...

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  11. Some equipotential lines are as shown is fig. E(1), E(2) and E(3) are ...

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  12. An uncharged sphere of metal is placed in between two charged plates a...

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  13. An electric dipole is placed in a uniform electric field. The dipole w...

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  14. The ratio of the electric field due to an electric dipole on its axis ...

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  15. The region surrounding a stationary electric dipole has

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  16. The value of electric potential at any point due to any electric dipol...

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  17. semicircle of radius R. The electric field at the centre is -

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  18. Figure shows the electric field lines around an electric dipole. Which...

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  19. The surface of a conductor -

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  20. When no charge is confined with in the Gauss's surface, it implies tha...

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