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A beam of electron passes undeflected th...

A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move

A

in a circular orbit

B

along a parabolic path

C

along a straight line

D

in an elliptical orbit

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
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  2. When a charged particle moving with velocity vecv is subjected to a ma...

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  3. A beam of electron passes undeflected through mutually perpendicular e...

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  4. In a mass spectrometer used for measuring the masses of ions, the ions...

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  5. Under the influence of a uniform magnetic field a charged particle is ...

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  6. A particle having a mas of 10^(-2) kg carries a charge of 5 xx 10^(-8)...

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  7. A particle moves in a region having a uniform magnetic field and a par...

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  8. A uniform electric field and uniform magnetic field are acting along t...

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  9. An alternating electric field, of frequency v, is applied across the d...

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  10. When a proton is released from rest in a room, it starts with an initi...

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  11. A charged particle is released from rest in a region of steady and uni...

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  12. An electron falling freely under gravity enters a region of uniform ho...

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  13. A proton deutron and an alpha -particle having the same K.E. are movin...

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  14. A charged particle is projected into a transverse uniform magnetic fie...

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  15. When a positively charged particle enters into a uniform magnetic fiel...

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  16. A charged particle goes undeflected in a region containing electric an...

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  17. A charged particle describes a circle under the influence of the magne...

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  18. A charged particle is projected perpendicular to uniform magnetic fiel...

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  19. Magnetic induction at a point due to a small element of current carryi...

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  20. Statement A : current is scalar Statement B : current element is vec...

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