CBSE : Class X : Science : Chapter 13 : Magnetic Effects of Electrical Current : What are the characteristics of magnetic field lines ?

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  • Published date: April 8, 2019
    • Vasai East, Thane, Maharashtra

Ans: Following are the characteristics of magnetics field lines :


a) They are closed and continuous curves.


b) They start from the North pole and end at the south pole externally and internally directed from South-North.


c) The magnetic field lines never intersect each other because, if two lines of force intersect each other and if a compass is placed at the point of intersection, it should show two north direction which is not possible.


d) The degree of closeness of field lines, gives the relative strength of the magnetic field.


e) The crowded magnetic field lines indicates stronger magnetic field and the spread out magnetic field lines indicates weaker magnetic field.

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