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A particle A has chrage +q and a particl...

A particle `A` has chrage `+q` and a particle `B` has charge `+4q` with each of them having the same mass `m`. When allowed to fall from rest through the same electric potential difference, the ratio of their speed `(v_(A))/(v_(B))` will become

A

`2 : 1`

B

`1 : 2`

C

`1 : 4`

D

`4 : 1`

Text Solution

Verified by Experts

The correct Answer is:
B
`qV = (1)/(2) mv^(2)`
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NARAYNA-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Exercise -1 (C.W)
  1. A uniform electric field poiting in poistive x-direction exists in a r...

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  2. The electric field at the origin is along the +ve x-axis. A small circ...

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  3. A particle A has chrage +q and a particle B has charge +4q with each o...

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  4. Let there be a uniform electric field "E" existing along the positive...

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  5. The potential at a point due to charge of 5xx10^(-7)C located 10 cm aw...

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  6. The potential at a point due to charge of 5xx10^(-7)C located 10 cm aw...

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  7. The electric potential at a point in free space due to a charge Q coul...

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  8. Electric field intensity at a point B due to a point charge Q kept ...

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  9. The electric potential in volts due to an electric dipole of dipole mo...

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  10. The electric potential in volts due to an electric dipole of dipole mo...

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  11. The electric potential due to an electric dipole of dipole moment 2 xx...

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  12. There is an electric field E in x-direction. If the work done on movin...

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  13. The electric potential V (in volt) varies with x (in metre) according ...

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  14. The electric potential decreases unifromly from 120 V to 80 V as one ...

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  15. Charges +q -4q and +2q are arranged at the corners of an equilateral t...

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  16. Three charges -q, Q and -q are placed at equal distances on a straight...

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  17. A system consists of two charges 4 mu C and -3 muC with no external fi...

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  18. (a) In a quark model of elementary particles, a neutron is made of one...

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  19. A dipole of electric dipole moment p is placed in a uniform electric f...

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  20. The work done in deflecting a dipole through 180^(@) from field direct...

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