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Electrostatic potential at one point is ...

Electrostatic potential at one point is V. Then electric field along X-axis can be written as `vecE_(x)` =...........

A

`int_(0)^(oo)V dxhati`

B

`(dV)/(dx) hati`

C

`-(dV)/(dx) hati`

D

`-int_(0)^(oo) V dx hati`

Text Solution

Verified by Experts

The correct Answer is:
A, D
We have `E =- (dV)/(dr )`
`:. vecE_(x)=-(dV)/(dx) hati`
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KUMAR PRAKASHAN-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Section D ( Multiple Choice Questions (MCQs) )
  1. At points P and Q, two identical charges each q are placed. When we mo...

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  2. Inside a uniformly charged spherical shell, electric field is ...... a...

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  3. Electrostatic potential at one point is V. Then electric field along X...

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  4. Surface of Earth is considered at ...... gravitational potential (in p...

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  5. Electric field is directed along the direction in which rate of electr...

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  6. A proton is moving away from an electron, then find the change in pote...

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  7. Unit of line integration of electric field is ......

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  8. The line integral or an electric field along the circumference of a ci...

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  9. 2C electric charge Is displaced from a point of electric potential -20...

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  10. The work done by carrying, unit positive charge in an electric field u...

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  11. Which one of the following is not a unit of electric potential ?

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  12. Give dimensional formula of electric potential.

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  13. A particle having mass m and charge q is , rest. On applying a uniform...

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  14. For a uniform electric field vecE = E(0)(hati), if the electric potent...

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  15. The work done by the charge Q through displacement Delta vecr = a hati...

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  16. What is the diameter of sphere of 4V potential kept near the points si...

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  17. Two spheres or different radii are given equal amount of charge. The ...

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  18. Charges on two spherical shells of radius r(1) and r(2) are same, then...

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  19. Two metallic sphenrs of radil R(1) and R(2) are charged. Now they are ...

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  20. Electric field on surfaces of two spheres of radius r(1) and r(2) are...

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