Q3 of 32 Page 98

A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to

On applying Right hand thumb rule, the magnetic field lines will be from point B to point A. As we know that magnetic field lines moves from North pole to South pole outside the magnet. So, A will represent North and B will represent south pole. So, The N-pole of the resultant magnet is on the face close to point A.

More from this chapter

All 32 →
1

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

 2

If the key in the arrangement (Figure 13.1) is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are

 4

For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is

 5

A uniform magnetic field exists in the plane of paper pointing from left to right as shown in Figure 13.3. In the field, an electron and a proton move as shown. The electron and the proton experience