NEET-XII-Physics

04: Moving Charges And Magnetism

page 2
Qstn# 17-a Prvs-QstnNext-Qstn
  • #17-a
    outside the toroid, (b) inside the core of the toroid, and (c) in the empty space surrounded by the toroid.
    Ans : Magnetic field outside a toroid is zero. It is non-zero only inside the core of a toroid.
    (b) Magnetic field inside the core of a toroid is given by the relation,

    B =

    Where,

    = Permeability of free space =

    l = length of toroid


    (c) Magnetic field in the empty space surrounded by the toroid is zero.
  • #17-b
    inside the core of the toroid, and
    Ans : Magnetic field inside the core of a toroid is given by the relation,

    B =

    Where,

    = Permeability of free space =

    l = length of toroid


  • #17-c
    in the empty space surrounded by the toroid.
    Ans : Magnetic field in the empty space surrounded by the toroid is zero.