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Two charges +6 muC and -4 muC are placed...

Two charges `+6 muC` and `-4 muC` are placed 15 cm apart as shown. At what distance from A to its right the electronstatic potential is zero (distances in cm)

A

4, 9, 60

B

9, 45, infinity

C

20, 45, infinity

D

9, 15, 45

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The correct Answer is:
B
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DC PANDEY ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITORS-(A) Chapter exercises
  1. A number of capacitors each of capacitance 1 muF and each one of whic...

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  2. A series combination of n(1) capacitors, each of value C(1), is charge...

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  3. Two charges +6 muC and -4 muC are placed 15 cm apart as shown. At what...

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  4. Assume that an electric field vec(E) = 30 x^(2) hat(i) exists in spac...

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  5. An electron initially at rest falls a distance of 1.5 cm in a uniform ...

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  6. A long, hollow conducting cylinder is kept coaxially inside another lo...

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  7. The potential at a point x ( measured in mu m) due to some charges sit...

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

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

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

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

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

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

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

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

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

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

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  18. The curve represents the distribution of potential along the staight l...

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  19. Seven capacitors, each of capacitance 2 muF, are to be combined to obt...

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

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