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ICSE-X-Physics

Previous Year Paper year:2019

with Solutions - page 8

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  • #10-b-ii
    Rewrite and complete the following nuclear reaction by filling in the atomic number of Ba and mass number of Kr :

    [3]


    Ans :


  • #10-c
    The diagram below shows a magnetic needle kept just below the conductor AB which is kept in North South direction.


  • #10-c-i
    In which direction does the needle deflect when the key is closed ?
    Ans : East.
  • #10-c-ii
    Why is the deflection produced?
    Ans : A current carrying conductor produces a magnetic field around itself.
  • #10-c-iii
    What will he the change in the deflection if the magnetic needle is taken just above the conductor AB ?
    Ans : The direction of deflection will reverse. (Towards west)
  • #10-c-iv
    Name one device which works on this principle.

    [4]
    Ans : An electromagnet.


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