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If proton moves with velocity 10hatims^(...

If proton moves with velocity `10hatims^(-1)` in magnetic field having magnitude `5hatj` T, magnetic force acting on it is ______ N.

A

`5xx10^(-18)`

B

`2xx10^(-18)`

C

`8xx10^(-18)`

D

`10xx10^(-18)`

Text Solution

Verified by Experts

The correct Answer is:
C
`vecF=q(vecvxxvecB)`
= `1.6xx10^(-19)(10hatixx5hatj)`
= `1.6xx10^(-19)(50hatk)`
`thereforevecF=8xx10^(-18)hatk`
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KUMAR PRAKASHAN-MOVING CHARGES AND MAGNETISM-SECTION D (MULTIPLE CHOICE QUESTIONS)
  1. Maximum magnetic force on electron moving with velocity 4xx10^(4)m//s ...

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  2. Lorentz force acting on a charged particle is zero. If electric field ...

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  3. If proton moves with velocity 10hatims^(-1) in magnetic field having m...

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  4. A strong magnetic field is applied on a stationary electron, then

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  5. A proton is moving perpendicular to a uniform magnetic field of 2.5 te...

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  6. A wire carrying a current i is placed in a uniform magnetic field in t...

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  7. A small circular flexible loop of wire of radius r carries a current I...

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  8. A particle having 2 C charge passes through magnetic field of 4hatkT a...

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  9. The dimension formula of the magnetic field intensity B is .

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  10. Two straight parallel wires, both carrying 10 Ampere in the same direc...

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  11. Maximum kinetic energy of positive ion in cyclotron is (Where r(0) = ...

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  12. Radius of circular path, followed by a charged particle is proportiona...

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  13. An electron moves perpendicular to uniform magnetic field B, on a circ...

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  14. Cyclotron frequency does not depend on

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  15. Cyclotron frequency of electron when accelerated in 1 T magnetic field...

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  16. Magnetic force exerted on charge moving in magnetic field is

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  17. When a charged particle enters perpendicular to uniform magnetic field...

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  18. When alpha-particle and proton move perpendicular to uniform magnetic ...

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  19. If radius of circular paths followed by one proton and one alpha-parti...

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  20. When a charged particle moves in a magnetic field its kinetic energy ...

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