Three particles travel through a region of space where the magnetic field is out of the page, as shown in the figure. What are the signs of the charges of these three particles? 0 0 010 0 B' O 1 is neutral, 2 is negative, and 3 is positive O 1 is neutral, 2 is negative, and 3 is negative O 1 is negative, 2 is neutral, and 3 is positive 1 is positive, 2 is neutral, and 3 is negative O 1 is positive, 2 is negative, and 3 is neutral D Question 3 2 pts A long, straight wire is carrying a current of 10.0 A in the direction shown in the figure. The point P is 0.040 m from the wire. What is the magnitude of the magnetic field at the point P? 0.04 m O 1.3 x 10-5 T O 2.5 x 10-5 T O 5.0 x 10-5 T O 7.9 x 10-5 T 1.0 x 10-4T