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Two point charges of magnitude 4muC and ...

Two point charges of magnitude `4muC` and `-9muC` are `0.5` apart .the electric intensity is zero at a distance `xm` from `A` and `ym` form `B` .`x` and `y` are respectively

A

0.5 m, 1.0m

B

1.0 m, 1.5 m

C

2.0 m, 1.5 m

D

1.5 m, 2.0 m

Text Solution

Verified by Experts

The correct Answer is:
B
Distance of null point `x=d/(sqrt((Q_(2))/(Q_(1)))+-1)`
+ve for like charge - ve for unlike charges
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NARAYNA-ELECTRIC CHARGES AND FIELDS-EXERCISE -2 (H.W)
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  2. Two small conducting spheres each of mass 9xx10^(-4)kg are suspended f...

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  4. A charge +q is fixed to each of three corners of a square .On the empt...

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  5. Electrical force between two point charge is 200N, if we increase 10% ...

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  7. A particle A having a charge of 2.0xx 10^(-6) C and a mass of 100 g i...

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  8. Two identical particles of charge q each are connected by a massless s...

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  9. Point charge of 3xx10^(-9)C are situated at each of three corners of a...

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  10. A large flat metal surface has a uniform charge density +sigma. An ele...

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  11. n charges Q,4Q,9Q,16Q…. are placed at distance of 1,2,3….. metre form ...

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  12. Two point charge q(1)=2muC and q(2)=1muC are placed at distance b=1 an...

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  13. A regular pentagon has four charges each +q at four of its vertices. A...

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  14. Two point charges a and b whose magnitude are same, positioned at a ce...

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  15. Find out electridc filed intensity at point A(1,0,2) due to a point ch...

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  16. An electric dipole consists of two opposite charges of magnitude 1muC ...

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  17. An electric dipole is formed by two particles fixed at the ends of a l...

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  18. For an electric dipole consisting of a positive and equal negative cha...

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  19. Two equal charges q of opposite sign are separated by a small distance...

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  20. The inward and outward electric flux for a closed surface unit of N-m^...

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