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Kinetic energy of a charged particle dec...

Kinetic energy of a charged particle decreases by 100 J when it is brought from a point of 100 V potential to a point of 200 V potential, then charge of particle is ...... C.

A

`0.1`

B

`1.0`

C

10

D

100

Text Solution

Verified by Experts

The correct Answer is:
A
According to law of conservation of energy kinetic energy + potential energy (at one point) = kinetic energy + potential energy
`:. K_(1) +qV_(1)=K_(2)+qV_(2)`
`:. K_(1)-K_(2)= DeltaK =q (V_(2)-V_(1))`
`:. 100 = 100 q`
`:. Q = +1 C `
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KUMAR PRAKASHAN-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Section D ( Multiple Choice Questions (MCQs) )
  1. The radius of a charged hollow sphere is 10 cm. If V is the potential ...

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  2. Electrostatic potential is ...... physical quantity.

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  3. Kinetic energy of a charged particle decreases by 100 J when it is bro...

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  4. Electric potential at 5 can distance from centre of shell of 14 cm rad...

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  5. A particle having mass 1 g and electric charge 10^(-8) C travels from...

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  6. The electric potential due to any point electric dipole varies as .......

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  7. Two charges - q and + q are located at points A(0, 0, - a) and B(0, 0,...

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  8. The dipole moment of a dipole is 4 xx 10^(-9) Cm. The po1ential of a p...

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  9. 10 muC charge Is placed on each vertex of equilateral triangle of 10 c...

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  10. For a point on the axis of the electric dipole theta = 0 and theta = p...

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  11. Potential energy of an electric dipole is minimum (Negatively maximum)...

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  12. When a n electric dipole is in st able equilibrium, in uniform electri...

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  13. A surface, value of electric potential on whichis same at all the poin...

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  14. Angle between equipotential surface and electric field is ......

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  15. A V - X graph for an electric field in X-direction is shown in the fig...

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  16. Uniformly polarised dielectric has ...... of induced charge.

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  17. C^(2)mN^(-1) is unit of ...... .

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  18. Value of dielectric constant of metal is.......

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  19. Which of the following atoms has permanent electric dipole moment zero...

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  20. Which of the following atoms behave as polar dielectric ?

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