Which of the following statement is not true? [Maharashtra 2012] a. Magnetic lines of forces are...

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Which of the following statement is not true?
[Maharashtra 2012]
a. Magnetic lines of forces are closed continuous curves
b. Two magnetic lines of force never intersect each other
c. Magnetic lines of force are far away from each other at the poles
d. They start from the north pole and end on the south pole of the magnet
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