hello, can you please help me with these questions?

Question 1 O d X Four straight wires are positioned at the corners of a square, d= 7.50 cm apart as shown above. The wires all carry a current of 1.50 A in the directions shown. What is the net magnetic field (magnitude and direction) at point P, at the centre of the square? Enter the text of the question here. O 1.60x10" T, down. O O T, there is no net magnetic field. O 3.20 x10 5 T, left. O 2.26 *105 T, left. Question 2 1,0 cm Determine the value for the line integral of the magnetic field between points / and f. The current through the wire is 4.90 A and the distance between points / and fis 11.5 cm. 6.16x10" Tm O 5.04x10 Tm O 9.24*10 Tm 3.08x10 Tm Question 3 The two straight wires above are L = 21.5 cm long, and d = 5.00 cm apart have a current of / = 5.77 A flowing in the same direction through each of them. What is the force (magnitude and direction) that wire A exerts on wire B? O 2.86x10" N up O 4.96*10 N up O 4.96x10 N down 2.86x10 5 N down