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Time varying magnetic filed is present i...

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"):}`

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The correct Answer is:
A, B, C, D
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Knowledge Check

  • Electric field induced by changing magnetic fields are

    A
    Conservative
    B
    Non-conservative
    C
    May be conservatie or non-conservative depending on the condition
    D
    Nothing can be said

  • Electric field at a point varies as r^(0) for

    A
    An electric dipole
    B
    A point charge
    C
    A plane infinite sheet of charge
    D
    A line charge of infinite length

  • A time varying magnetic field B = Kr^(3)t is existing in a cylindrical region of radius 'R' as shown (where k is a constant). The induced electric field 'E' at r (R )/(2) is

    A
    `(KR^(4))/(20)`
    B
    `(KR^(4))/(40)`
    C
    `(KR^(4))/(60)`
    D
    `(KR^(4))/(80)`

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