Login/Sign Up
Choose the incorrect statement from the following regarding magnetic lines of the field (a) The direction of the 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 represent zero-field strength (d) The relative strength of the magnetic field is shown by the degree of closeness of the field lines
Choose the incorrect statement from the following regarding magnetic lines of the field
(a) The direction of the 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 represent zero-field strength
(d) The relative strength of the magnetic field is shown by the degree of closeness of the field lines
CBSE | Class 10 | Magnetic Effects of Electric Current | NCERT Exemplar | Science
Choose the incorrect statement from the following regarding magnetic lines of the field
(a) The direction of the 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 represent zero-field strength
(d) The relative strength of the magnetic field is shown by the degree of closeness of the field lines

In the case of open magnetic field lines drawn over the horizontal plane ABCD, the magnetic field lines will take the shape of concentric circles, with the centre of each circle located at the axis of the conductor. The reason for this is that there will be no current flowing through the conductor, and consequently there will be no magnetic field generated by the conductor. Consequently, only the Earth’s magnetic field will be present at point O, resulting in magnetic field lines that are arranged in the shape of concentric circles.

Answer is (a) concentric circles

i

More Material