74 B= 84 A= PHY 156 - Lecture 07-09- practice problems 184 D 16 shown? 1. a. What is the direction of the magnetic force on a negative charge that moves as shown in each of the cases B out b. If three particles (neutral, proton and electron) project through a region of space where the magnetic field is into the page as shown. Label the particle names for that choose path 1, 2 and 3. X X X X X X X X X X X X X X X 2 x X X X X X X X XXX X X X X X c. What direction is the magnetic force acting on the following figure? If current I=0.5 Amps and magnetic field B= D/100 Tesla, and wire length is 0.30 m calculate the magnetic force? B I 2. Two very long, straight, parallel wires each carry currents i=D/5 A and i2= 1.0 A, directed as shown in the figure. These wires pass through the vertices of a right isosceles triangle from R=C cm distance. a. Draw the FBD of magnetic fields at P? b. Calculate magnetic field at P due to i, what is the direction? c. Calculate magnetic field at P due to 12, what is the direction? d. What is the total magnitude and direction of the magnetic field at point P? 1 PHY156