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3What are magnetic field line? Justify the
following statements.
(a) Two magnetic field lines never intersect
each other
(b) Magnetic field lines are closed curve.
Answers
Answer:
(i) Two magnetic field lines never intersect each other. (ii) Magnetic field lines are closed curves. ... (i) Any point on magnetic field line indicates the direction of force on a North pole kept there. If two lines meet, it means that force is acting in two directions at that point which is not possible.Jul 7, 2016
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What are magnetic
Answer:
A magnetic field is a vector field that describes the magnetic influence on an electric charge of other moving charges or magnetized materials.
a-The two magnetic field lines do not intersect each other because if they do it means at the point of intersecting the compass needle is showing two different directions which are not possible.
b-Magnetic field lines are closed curve because magnetic monopoles do not exit. Outside a magnet direction of magnetic field, lines are from north to the South Pole and inside a magnet the direction if from south to north, hence forming a closed loop.