1. A small current element located at the origin has a length of 2.00 mm and carries a current of 2.0 A in the +z direction. Discover the magnitude and direction of the magnetic field due to this current element at the point (0.0, 0.3m, 0.3m)
2. A circular coil has 30 turns and a radius of 4cm. The coil is placed in a magnetic field directed along the axis of the coil. The magnitude of the magnetic field varies according to: B(t) =0.010 t + 0.040 t 2, where t is in second and B is in teals. What is the induced emf across the coil at t =5.00s