This blog contain very important numerical of magnetic effect of current. There are 10 numerical based on this chapter. It is not necessary that questions will be asked from this blog same as given questions, but these questions will help you to improve your numerical skill . Students preparing for class 12th board exam must solve these questions, i am sure it will help you to improve and sole numerical question of this chapter.
1. Two wires A and B have the same length equal to 44cm . and carry a current of 10A each . Wire A is bent in circle and B as a square .(a) obtain the magnetic field by both the coils at the center ,(b) which has more field at their centre?
2. A straight long thick wire of uniform cross-section ( radius r=10cm ) carries current 10A through it . Calculate the ratio of magnetic field at a point r/2 above the surface and a point r/2 below the surface. What is the maximum field due to this current carrying wire?