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A copper(density of Cu=p(c)) ball of dia...

A copper(density of Cu=`p_(c)`) ball of diameter dis innnersed in oil of density `p_(0)` . What is the charge on the ball if, in a homogeneous elecltric field E directed vertically upward, it is suspended in the oil ?`(k=pid^(3)(p_(c)g)/(E))` :

A

`(1)/(6)k(1-(p_(0))/(p_(c)))`

B

`(1)/(3)k(1-(p_(0))/(p_(c)))`

C

`(1)/(2)k(1-(p_(0))/(p_(c)))`

D

`k(1-(p_(0))/(p_(c)))`

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PHYSICS GALAXY - ASHISH ARORA-ELECTROSTATICS-Numerical MCQs Single options Correct
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  2. Electric charge is uniformly distributed along a along straight wire o...

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  3. A copper(density of Cu=p(c)) ball of diameter dis innnersed in oil of ...

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  4. A particle of mass m and charge q is fastened to one end of a string o...

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  5. A small ball of masss m and charge +q tied with a string of length l, ...

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  6. If unifrom electric filed vecE = E(0)hati + 2E(0) hatj, where E(0) is ...

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  7. Two metal pieces having a potential difference of 800V are 0.02 m apar...

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  8. A sphere of radius 2R has a uniform charge density p. The difference i...

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  9. A sphere of radius R carries charge density p proportional to the squa...

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  10. The work done in bringing a 20 coulomb charge from point A to point B ...

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  11. In an electric field region, the electric potential varies along the x...

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  12. Two spheres A and B of radii 17 cm each and having charges of 1 and 2 ...

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  13. Electric potential at any point in a region is given as V=5x+3y+sqrt...

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  14. A charge +Q is uniformly distributed in a spherical volume of radius R...

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  15. A charge +q is fixed at each of the points x=x0, x=3x0, x=5x0,…………x=oo...

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  16. The displacement of a chrage Q in the electric field E = e(1)hati + ...

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  17. A non-conducting ring ofradius 0.5 m carries a total charge of 1.11xx1...

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  18. Three semi-infinite rods uniformly charged out of which one is negativ...

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  19. Two small balls of mass Meach carrying charges +Q and -Q, connected by...

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  20. A particle of mass m and charge -q is projected from the origin with a...

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