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A beam of electrons passes underfected...

A beam of electrons passes underfected throgh unifromly perpendicular electric and magnetic fields. If the electric field is swiched off, and the same magnetic field is maintained the electrons move:

A

along a straight line

B

in an elliptical orbit

C

in a circular orbit

D

along a parabolic path

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The correct Answer is:
C
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MOTION-MAGNETISM -1-Exercise - 3 SECTION -A
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  2. A charged particle (charge q) is moving in a circle of radius R wit...

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  3. A beam of electrons passes underfected throgh unifromly perpendicula...

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

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

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  6. A closed loop PQRS carrying a current is place in a unifrom magnetic ...

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  7. A circular disc of radius 0.2 m is placed in a uniform magnetic field ...

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  8. The magnetic force acting on a charged particle of charge -2 muC in ...

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  9. A square current carrying loop is suspended in a unifrom magnetic ...

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  10. A thin ring of radius R metre has charge q coulomb uniformly spread ...

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  11. A current loop consists of two identical semicircular parts each of ra...

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  12. A closely wound solenoid of 2000 turns and area of cross-section 1.5 x...

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

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  14. Two long parallel conducting wires carry current I in same direction, ...

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  15. A magnetic dipole of dipole moment 10(hati+hatj+hatk) is placed in a ...

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  16. Current I is flowing in infinitely long wire. Which of the following g...

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  17. A current carrying closed loop in the from of a right angle isosel...

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  18. A uniform electric field and a uniform magnetic field are acting along...

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  19. A square loop, carrying a steady 1, is placed in a horizontal plane n...

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  20. A proton travels few distance in an electric field, it then enters a c...

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