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Match the following : {:(" ...

Match the following :
`{:(" Column I"," Column II"),("(A) Steady electric field","(p) Can accelerate a stationary charge"),("(B) Steady magnetic field","(q) Can accelerate a moving charge"),("(C) Time varying magnetic field","(r) Can change the speed of a charge"),("(D) Induced electric field","(s) Forms closed loops"):}`,

Text Solution

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The correct Answer is:
A, B, C, D
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Can a charged particle be accelerated by a magnetic field. Can its speed be increased?

Can a charged particle be accelerated by a magnetic field? Can its speed be increased?

Knowledge Check

  • Assertion: Magnetic field can not change the kinetic energy of moving charges. Reason: Magnetic field can not change velocity vector.

    A
    If both the assertion and reason are true and reason is a true explantion of the assertion.
    B
    If both the assertion and reason are true but the reason is not the correct explantion of the assertion.
    C
    If the assertion is true but reason false
    D
    If both the assertion and reason are false.

  • A: The magnetic field always accelerates a moving charge if the moving charge cuts the field lines. R: When a moving charge cuts the magnetic field lines, the magnetic force on the charge is always non zero.

    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)

  • Assertion : Magnetic field do not work on moving charge Reason : Magnetic field do not provide acceleration to charge.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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    A charged particle having non zero initial velocity is subjected to certain conditions given in column -I column-II gives possible trajectories of the particle Match the conditions in column-I with the results in column-II {:(,"Column-I",,"Column-II"),("(A)","In only uniform electric field",,"(P)the path of the charged particle may be a straight line"),("(B)","in only uniform magnetic field",,"(Q)the path of the charged particle may be a parabola"),("(C)","in uniform magnetic and uniform electric field",,"(R)the path of the charged particle may be circular"),("(D)","Subjected to a net force of constant magnitude",,"(S)the path of the charged particle may be helical with uniform pitch"),(,,,"(T)the path of the charged particle may be helical with non uniform pitch"):}

    Time varying magnetic filed is present in a circular region of radius R. Match the proper entries from column-2 to column-1 using the codes given below the columns, {:("Column I",,"Column II"),("(P) An unsteady magnetic field",,"(1) Electric field is perpendicular to the length of rod "),((Q) "Induced electric field at a point within magnetic field (r gtR)",,(2) r/2 (dB)/(dt)),("(R)Induced electric field at a point out side the magnetic field (r lt R)",,(3)(R^(2))/(2r)(dB)/(dt)),((S)"If a rod is placed along the diameter of the magnetic field",,"(4) induced electric field"):}

    A: magnetic field is produced by moving charges(s). R: The magnetic field in the central region of a solenoid is uniform.

    Force acting on a moving charged particle in a region of electric and magnetic fields is called

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