4. (a) Explain Ampere's Law. Write down the Ampere's Law equation for an infinite long conductor wire and explain the meaning of the symbols used. I = Fig. 1 Figure 1 shows two infinite long wires each carrying a current į, Both conductors are parallel to each other and are perpendicular to the plane of the paper. Given that a = 2 cm and į = 2 A. Calculate (1) the magnitude and the direction of the magnetic field on lḥ due to conductor (ii) the magnitude and the direction of the force acting on conductor I1.

4. (a) Explain Ampere's Law. Write down the Ampere's Law equation for an infinite long conductor wire and explain the meaning of the symbols used. I = Fig. 1 Figure 1 shows two infinite long wires each carrying a current į, Both conductors are parallel to each other and are perpendicular to the plane of the paper. Given that a = 2 cm and į = 2 A. Calculate (1) the magnitude and the direction of the magnetic field on lḥ due to conductor (ii) the magnitude and the direction of the force acting on conductor I1.