Observation: 1. When electric current starts flowing through the coil, are produced at each point on the coil. 2. As we go away from the wire, the concentric circles representing the magnetic lines of forces will become 3. As intencity of electric current increases the magnetic lines of force becomes more clearer.
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you can also get free sample papers, Notes, Important Questions. ... Ans. Properties of magnetic field lines of force: (i) ... (iii) No two magnetic field lines ever intersect each other. 4 .
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