5555555555 24. The direction of a magnetic field within a magnet is ________. (a) from south to north (b) from north to south (c) back to front (d) front to back
Electromagnetic Induction » Exercise - 18. The dimensions of ‘self inductance’ and ‘magnetic flux’ are : (a) M L T –2 and M L 2 T –1 A –1 respectively (b) M L 2 T –2 A –2 and M L 2 T –2 A –1 respectively (c) M 2 L -1 T –1 and M 2 L 2 T –2 respectively (d) M T –2 A –1 and M 2 L T respectively
Magnetism » Exercise - 15. A magnet of pole strength m and length lis broken into two pieces. The pole strength of each piece is : (a) m (b) m/2 (c) 2m (d) m/4