Choose the incorrect statement from

Question:

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

(a) The direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points.

(b) Magnetic field lines are closed curves.

(c) If magnetic field lines are parallel and equidistant, they rep-resent zero field strength.

(d) Relative strength of magnetic field is shown by the degree of closeness of the field lines.

Solution:

(c).

Explanation : Magnetic field lines which are parallel and equidistant represent uniform magnetic field.

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