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Standard XII

Physics

Circular Kinematics

23.) A partic...

Question

23.) A particle having a mass of 10-2 kg carries a chargeof 5 x 10-8C. The particle is given an initialhorizontal velocity of 105 ms-1 in the presence ofelectric field E and magnetic field B. To keep theparticle moving in a horizontal direction, it isnecessary that(a) B should be perpendicular to the direction ofvelocity and E should be along the direction ofvelocity(b) Both B and E should be along the direction ofvelocity(c) Both B and are mutually perpendicular andperpendicular to the direction of velocityB should be along the direction of velocity andE should be perpendicular to the direction ofvelocity(d)Which one of the following pairs of statements ispossible?(1) (a) and (c)(3) (b) and (c)AIPMT (Mains)-2010\rbrack(2) (c) and (d)(4) (b) and (d)

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Similar questions

Q. A particle having a mass of

10^{- 2}

kg carries a charge of

5 \times 10^{- 8}

C. The particle is given an initial horizontal velocity of

10^{5} m s^{- 1}

in the presence of electric field

\to E

and magnetic field

\to B

. To keep the particle moving in a horizontal direction, it is necessary that

(i)

\to B

should be perpendicular to the direction of velocity and

\to E

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(ii) Both

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(iii) Both

\to B

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\to E

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(iv)

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should be perpendicular to the direction of velocity.

Which one of the following pairs of statements is possible

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