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A: The trajectory of a charge when it is...

A: The trajectory of a charge when it is projected perpendicular to an electric field is a parabola.
R: A moving charge entering parallel to the magnetic field lines moves in a circular path.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark 2.

C

If assertion is true statement but Reason is false, then mark (3)

D

If both Assertion and Reason are false statements, then mark (4)

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • When a charged particle moves perpendicular to a magnetic field, then:

    A
    speed of the particles is changed
    B
    speed of the particle remains unchanged
    C
    direction of motion of the particle remains unchanged
    D
    acceleration of the particle remains unchanged

  • A charged particle moving in an electric field

    A
    must undergo change in velocity
    B
    must undergo change in speed
    C
    may not undergo change in velocity
    D
    may not undergo change in speed

  • If a charged particle enters perpendicular in the uniform magnetic field then

    A
    Energy remains constant but moment changes
    B
    Energy and momentum both remains constant
    C
    Momentum remains constant but energy changes
    D
    Neither energy nor momentum remains constant

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