Question

2. Briefly discuss the Biot Savart Law and give its mathematical expression. (5 Marks) a. b. An infinitely long straight conductor is present in a magnetic field B. The conductor carrying a current of I = 10 A, is placed in a sheath (M- 202 ). At what distance from the conductor will the magnetic field be 1T/m? Find the magnetic moment of a square loop of 500 turns in a field of uniform flux density 2.5mT. The loop carries a current of 5 A is made up of copper with 500 and 15cm (5 Marks) c. sides. (3 Marks) d. In a certain region in space, the electric and magnetic fields are B-5.0x10 a, T and -=5.0,V/m respectively. Using a rectangular coordinate system, an electron enters the fields at the origin with an initial velocity of v 2.5x10 a,m/s. Calculate the initial force on electron. (3 Marks) e. The electron in Q2(d) will start revolving in circular path of radius r with a time period of 2m 2m T=_= s. Calculate the electron's frequency of revolution. (4 Marks)

Answer 1

clon dsai T de sin o

-3 1a lg