Saved Bookmarks
| 1. |
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(a) A (b) B(c) A if the current is small, and B if the current is large(d) B if the current is small and A if the current is large |
|
Answer» (a) Hint— Misconception is that magnetic field lines point from north to south pole. The fact is that they emerge out of North pole and entre into South pole. |
|