Hi tutor please read the notes i wrote just under this and make sure if you do not know how to do it please let the other tutor do it as this is time sensitive

PLEASE USE ONLY GRADE 12 FORMULAS AND KNOWLEDGE

PLEASE FINISH AS FAST AS POSSIBLE

3. Four wires carrying electric current are placed beside each other as shown below. Determine the magnitude and direction of the total magnetic eld in the centre of the square. The side of the square is 10 cm. [A5] 4. Light strings {13 rn long suspend two long, straight and parallel wires of length 1.5 m and mass [125 kg as shown below. The currents in the two wires are the same but in opposite directions and the angle between the strings Is 12'. Calculate the current in each wire. [AB]