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At y = 1 cm, y = 3 cm y = 9 cm, y = 27 c...

At y = 1 cm, y = 3 cm y = 9 cm, y = 27 cm … and so on , an infinite number of charges equal to 5C are placed. At x = 1 cm, x = 2 cm, x = 4 cm, x = 8 cm …. And so on, an infinite number of charges equal to - 5C are placed. Find the electirc potential at origin is volts . `(K = (1)/(4pi epsilon_(0)))`

A

250 K

B

`-250 K`

C

zero

D

`100 K`

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The correct Answer is:
B
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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (ELECTRIC POTENTIAL & CAPACITANCE )
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  2. Two point charges 4muC and 9muC are separated by 50 cm. The potential ...

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  3. Two charges 2 nano coulombs and -6 nano coulombs are separated by 16 c...

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  4. Two electric charges of 9mu C and - 3mu c are placed 0.16 m apart in a...

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  5. Two opposite and equal chrages 4 xx 10^(-8) coulomb when placed 2 xx 1...

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  6. The potential at a point due to an electri dipole wlll be maximum and ...

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  7. An electric dipole has the magnitude of its charge as q and its dipole...

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

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  9. Find the V(ab) in an electric field E=(2hati+3hatj+4hatk)N/C, where ra...

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  10. If V(o) be the potential at origin in an electric field vecE=E(x)hati+...

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  11. Electric potential is given by V=6x-8xy^(2)-8y+6yz-4z^(2) Then ele...

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  12. An electric field is given by E=(y hat(i)+ xhat(k))N//C. Work done in ...

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  13. A field of 100Vm^(-1) is directed at 30° to positive x-axis. Find (VA...

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  14. (Figure 3.141) shows two equipotential lines in the x plane for an ele...

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  15. Two metal spheres have their surface areas in the ratio 9:16. They are...

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  16. Two isolated metallic solid spheres of radii R and 2R are charged suc...

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  17. A hollow charged metal sphere has radius r. If the potential differenc...

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  18. The electric potential on the surface of a sphere of radius R and char...

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  19. A metal sphere A of radius a is charged to potential V. What will be i...

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  20. A solid conducting sphere, having a charge Q, is surrounded by an unch...

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