Magnetic field lines — task. Physics CBSE Live product, Class 10.

1. Choose the incorrect statement from the following regarding magnetic lines of field

Magnetic field lines start from north pole and end at south pole outside the magnet.
Magnetic field lines are not closed curves.
Magnetic field lines never intersect each other.
Magnetic field lines start from south pole and end at north pole inside the magnet.

2. Removing the key from the circuit (as shown in the figure) opens the circuit, and when magnetic field lines are drawn on the horizontal plane ABCD, the lines are

elliptical
Oblate shaped
straight lines parallel to each other
concentric spheres

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1. Magnetic field lines

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