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Assume that an electric field `vec(E) = 30 x^(2) hat(i)` exists in space. Then the potential differences `V_(A) - V_(0)` where `V_(0)` is the potential at the origin and `V_(A)`, the potential at `x = 2m` is

A

120 V

B

`-120 V`

C

`-80 V`

D

`80 V`

Text Solution

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The correct Answer is:
C
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DC PANDEY-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
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  6. The potential at a point x ( measured in mu m) due to some charges sit...

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  7. Three charges Q, +q and +q are placed at the vertices of a right-angle...

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  8. Four point charges each +q is placed on the circumference of a circle ...

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  9. The resultant capacitance between A and B in the following figure is e...

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  10. In the following circuit, the resultant capacitance between A and B is...

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  11. A small conducting sphere of radius r is lying concentrically inside a...

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  12. A parallel plate air capacitor has a capacitance C. When it is half fi...

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  13. Charge Q is uniformly distributed on a dielectric rod AB of length 2l....

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  14. The arc AB with the centre C and the infinitely long wire having line...

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  15. Two charges q(1) and q(2) are placed 30 cm apart, as shown in the figu...

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  16. Three identical metallic uncharged spheres A, B and C of radius a are ...

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  17. The curve represents the distribution of potential along the straight ...

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  18. Seven capacitors each of capacity 2 muF are to be so connected to have...

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  19. A solid conducting sphere of radius a having a charge q is surrounde...

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  20. Three identical charges are placed at corners of a equilateral triange...

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