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When a positively charged particle enter...

When a positively charged particle enters a uniform magnetic field with uniform velocity, its trajectory can be
`a)` a straight line `b)` a circle `c)` a helix

A

a only

B

a or b

C

a or c

D

any one of a, b and c

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The correct Answer is:
D
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NARAYNA-MOVING CHARGES AND MAGNETISM-C.U.Q (FORCE ON A MOVING CHARGE IN MAGNETIC FIELD)
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  2. An electron and a proton enter a magnetic field with equal velocities....

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  3. An electron and a proton enter a magnetic field at right angles to the...

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  4. A charged particle moving in a magnetic field experiences a resultant ...

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  5. An electron of mass 'm' is accelerated through a potential difference...

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  6. Among the following, one characteristic is independecnt of the angle b...

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  7. A charged particle enters into a uniform magnetic field the parameter ...

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  8. A free charged particle moves through a magnetic field. The particle m...

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  9. An electron is projected parallel to electric and uniform magnetic fie...

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  10. A charged particle is moving with velocity'V' in a magnetic field of i...

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  11. If electron velocity is 2i+4j and it is subjected to magnetic field of...

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

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  13. A protn and an alpha particle enter into a uniform magnetic field with...

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  14. A uniform electric field and a uniform magneitc field exist in a regio...

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  15. Imagine that you are seated in a room and there is a uniform magnetic ...

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  16. A charged particle with charge q enters a region of constant, uniform ...

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  17. An electron of chargee, revolves round in an orbit of radius r with a ...

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  18. A proton and a deuteron are projected with same speeds normal to a uni...

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  19. If a charged particle is projected perpendicular to a uniform magnetic...

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  20. When a positively charged particle enters a uniform magnetic field wit...

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