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A large number of particles each having ...

A large number of particles each having electric charge `1muC` are placed at x = 1 m, 2m , 4m 8m…. The electric potential at x=0 is

A

1.8V

B

18kV

C

1800V

D

180kV

Text Solution

Verified by Experts

The correct Answer is:
B
Electric potential `V=(KQ)/( r)` and
use `V=V_1+V_2+V_3+…..`

`V=V_1+V_2+V_3+V_4+…`
`=kxx10^(-6) [1/1+1/2+1/4+1/8+…]`
`=9xx10^3[(1)/(1-1/2)]`
=18kV
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NEET MAJOR TEST (COACHING)-NEET 2020 TEST 5-PHYSICS
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  4. Eight capacitors , each of capacitance 2muF are conneted as shown in t...

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  6. Five capacitors are connected in series as shown in figure with a batt...

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  7. Two point charge qA " and " qB are placed in a uniform external electr...

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  8. A large number of particles each having electric charge 1muC are place...

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  9. Figure shows the variation of electric field intensity E with distance...

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  10. Figure shows a set of equipotential surfaces. The magnitude and direct...

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  11. The electric potential at a point (x, y, z) is given by V=-xy+z-z^3yx ...

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  12. Two point charges +q and -q are placed at point A and B respectively w...

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  13. A, B and C are three points in an electrostatics field. The electric p...

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  14. Three point charges are placed as shown in the figure. S is a gaussian...

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  15. A very long uniformly charged thin wire whose one end is at point (0,...

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  16. Three point charges 1muC ,1muC " and " -2muC are placed at points havi...

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  17. A point object of mass 1mg and charge 1muC is hung with a silk thread ...

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  18. Four point charges q, -2q, -q and 2q are placed at points (0,0,0) m , ...

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  19. A charge 4muC is located at the centre of one of the edge of a cube . ...

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  20. A particle of mass m and charge q is placed at rest in a uniform elect...

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