Question 1 Calcualte the magnetic field strength at point P. The current, /, is 5.00 A, the angle is 19.7' and the radius, R, is 6.70 cm. Question 2 X O O Four straight wires are positioned at the corners of a square, d= 12.0 cm apart as shown above. The wires all carry a current of 1.60 A in the directions shown. If an electron happens to be at the point P in the centre of the square, moving in the direction shown with a speed of v= 3.00 x 10' m/s, what is the manitude of the force on the electron at that instant