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    a particle of mass m, charge q and kinetic energy k enters a transverse uniform magnetic field b. after 10 seconds magnitude of momentum of the particle is

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    A particle of mass m, charge q and kinetic energy t enters a transverse uniform magnetic field of induction B. After 3 s, the kinetic energy of the particle will be

    Click here👆to get an answer to your question ✍️ A particle of mass m, charge q and kinetic energy t enters a transverse uniform magnetic field of induction B. After 3 s, the kinetic energy of the particle will be

    Question

    A particle of mass m, charge q and kinetic energy t enters a transverse uniform magnetic field of induction B. After 3 s, the kinetic energy of the particle will be

    A

    3T

    B

    2T

    C

    T

    D

    4T

    Medium Open in App

    Updated on : 2022-09-05

    Solution Verified by Toppr

    Correct option is C)

    after passing through a magnetic field, the magnitude of its mass and velocity of the particle remains same, so its energy does not change that is kinetic energy will remain T.

    Hence (C) is correct answer

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    [Solved] A particle of mass m, charge Q and kinetic energy T ent

    CONCEPT: Magnetic Field: The field around the magnet that exerts a magnetic force on the magnetic substances is called a magnetic field. When a cha

    Home Physics Moving Charges and Magnetism Motion in a Magnetic Field Circulating Charged Particle

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    A particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction

    B→

    . After 3 seconds the kinetic energy of the particle will be -

    T 4 T 3 T 2 T

    Answer (Detailed Solution Below)

    Option 1 : T

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    Detailed Solution

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    CONCEPT:Magnetic Field: The field around the magnet that exerts a magnetic force on the magnetic substances is called a magnetic field.

    When a charged particle enters a region of the uniform magnetic field,

    it experiences a magnetic force which remains perpendicular to its motion due to which the particle undergoes a uniform circular motion.

    As the magnetic force remain perpendicular to the motion, work done by the magnetic force on the particle = 0

    Work done is given by the change in kinetic energy since work done is zero so is the kinetic energy.

    Change in kinetic energy of the particle is "0".Work done (W) = Force (F).displacement (s) Cosθ

    Where θ is the angle between F and s

    EXPLANATION:

    In the case of magnetic force,

    The force acting is perpendicular to the velocity of the particle,

    So θ = 90°

    Work done (W) = F s cos90° = 0

    The kinetic energy of the particle will remain constant i.e. T.

    The correct option is 1.

    Download Solution PDF

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    A particle of mass m, charge q and kinetic energy T enters in a transverse uniform magnetic field of induction B. After the 3 s, the kinetic energy of the particle will be

    A particle of mass m, charge q and kinetic energy T enters in a transverse uniform magnetic field of induction B. After the 3 s, the kinetic energy of the par

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    A particle of mass m, charge q and kinetic energy T enters in a transverse uniform magnetic field of induction B. After the 3 s, the kinetic energy of the particle will be

    Updated On: 27-06-2022

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