Please clearly show all the math work. Thanks

9. The gure shows a negatively charged particle moving in the 3' direction through a B-l'ield pointing in the +2 direction. What is the direction of the force on the particle? Check the box which applies. For example if you think the Force is in the 2 direction you would mark the lower right box. g A A 4:7 X\" (5) 943 I; + 10. You stand directly underneath a long transmission wire which carries a current of) : 100 A to the East. The wire is parallel to the ground at a height of 10m above your head. What is the magnitude and direction of the magnetic field which goes through your head? A (5) IBI _ B l l. A water stream from a faucet goes straight down. A rod with positive charge at the end is brought near the stream. Is the stream deected? If so in which direction. Circle the best answer. GIVE a short (one or two sentence) explanation for your answer. If you answer "not enough info\" - what additional information do you require? F/ (5) a) No deflection h) deected toward the rod c) deected away from rod d) not enough info 12. A negatively charged particle is undergoing circular motion in a magnetic field. as shown in the figure. 0n the figure. DRAW two vectors to indicate the direction of the velocity E? and the acceleration E of the particle. Suppose the velocity of the particle were doubled. What would happen to the magnitude of the acceleration? Circle the best answer. (5) a)a~+::a b)'4-;a c)unchanged d)u->2a e}a+4a