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A unifrom magnetic field B is acting fr...

A unifrom magnetic field `B` is acting from south to north and is of magntitdue `1.5 Wb//m^(2)`. If a proton having mass `= 1.7xx10^(-27) kg` and charge `= 1.6xx10^(-19) C` moves in this field vertically downwards with energy `5 MeV`, then the force acting on it will be

A

`7.4xx10^(12)N`

B

`7.4xx10^(-12)N`

C

`7.4xx10^(19)N`

D

`7.4xx10^(-19)N`

Text Solution

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The correct Answer is:
B
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ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise
  1. A proton (mass = 1.67xx10^(-27) kg and charge 1.6xx10^(-19) C) enters ...

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  2. An alpha particle travels in a circular path of radius 0.45 m in a mag...

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  3. A unifrom magnetic field B is acting from south to north and is of m...

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

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  5. A uniform magnetic field acts right angles to the direction of motion ...

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  6. A deutron of kinetic energy 50 keV is describing a circular orbit of r...

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  7. If a proton is projected in a direction perpendicular to a uniform mag...

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  8. An electron is travelling horizontally towards east. A magnetic field ...

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  9. Lorentz force can be calculated by using the formula.

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  10. A magnetic field

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  11. A proton enters a magnetic fiedl of flux density 1.5"weber"//m^(2) wit...

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  12. If a particle of charge 10^(-12) coulomb moving along thehat(x)-direct...

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  13. A proton, a deuteron and an alpha particle are accelerated through sam...

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  14. Which of the following statement is true

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  15. An electron and a proton enter region of uniform magnetic field in a d...

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  16. A proton of mass 1.67xx10^(-27)kg and charge 1.6xx10^(-19)c is projec...

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  17. A proton and a deuteron both having the same kinetic energy, enter pe...

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  18. A proton (or charged particle) moving with velocity v is acted upon by...

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  19. A proton and an electron both moving with the same velocity v enter ...

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  20. A charge + Q is moving upwards vertically. It enters a magnetic field ...

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