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Electrons move at right angles to a magn...

Electrons move at right angles to a magnetic field of `1.5xx10^(-2)` Tesla with a speed of `6xx10^(7)m//s`. If the specific charge of the electron is `1.7xx10^(11)C//kg`. The radius of the circular path will be

A

2.9 cm

B

3.9 cm

C

2.35 cm

D

2cm

Text Solution

Verified by Experts

The correct Answer is:
C
Radius of circular path is
`rarr=(mV)/(B)=(V)/((C)/(m))B=(6xx10^(7))/(1.7xx10^(11)xx1.5xx10^(-2))`
`=2.35xx10^(-2)m=2.35 cm`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MAGNETIC EFFECT OF ELECTRIC CURRENT-Exercise 1
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  3. A proton, a deuteron and an alpha-particle with the same KE enter a re...

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  4. Magnetic field

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  6. A charged particle enters a magnetic field H with its initial velocity...

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  8. An electric field of 1500 V/m and a magnetic field of 0.40 Wb/m^(2) ac...

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  9. Identify the correct statement from the following

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  10. If the radius of the dees of cyclotron is r then the kinetic energ...

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  11. If the velocity of charged particle has both perpendicular and paralle...

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  12. A uniform magnetic field barB =B(0)hatj exists in a space. A particle ...

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  13. An electron and a proton enter a magnetic field perpendicularly. Both ...

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  14. Two charged particles traverse identical helical paths in a completely...

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  15. A proton and an alpha particle accelerated through the same potential ...

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  16. Electrons move at right angles to a magnetic field of 1.5xx10^(-2) Tes...

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  17. A particle of mass M and charge Q moving with velocity vec(v) describe...

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  18. A particle of mass m, charge q and kinetic energy T enters in a transv...

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  19. The magnietic force on a charge particle moving in the field does no ...

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  20. The figure shows three situations when an electron moves with velocity...

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