Adobe Reader Touch - X //. A proton moving at 4 x 10 m/s horizontally enters a region where a magnetic field of 0.15 T is present, directed vertically downward. What magnitude of the magnetic force acts on the proton due to this magnetic field? ( = 1.60 x 10-19 C) 1.2 (1 point) Page 3 of 5 Dr. Radi Al Enaizi ///. A straight wire carries a current of 10 A at an angle of 30 with respect to the direction of a uniform 0.3 T magnetic field. Find the magnitude of the magnetic force on a 0.5 m length of the wire. 1.2 (0.5 point) /V. How many turns should a 10 cm long ideal solenoid have if it is used to generate a 1.5 m T magnetic field when 2 A of current runs through it? (uo = 4x x 10" T . m/A) 2.3 (1 point) JOIT:' ENG : () D Q ~ J 25'C.. . Lo clawAdobe Reader Touch - X V. (a) What is the equivalent resistance in the circuit shown in the figure? 2.2 (2 points) 50 10 12 Y (b) If V= 12 V ideal battery is used, what is the total power dissipated through the circuit? JOIT:' ENG ": () Fag~ J 25.C ... Lo clawAdobe Reader Touch - X V/. For the circuit shown in the figure, V = 20 V, C = 30-UF, R = 50-K$2, and the battery is ideal. Initially the switch S is open, and the capacitor is uncharged. The switch is then closed at time t = 0 s. (a) What is the time constant of the circuit? 2.1 (1.5 points) (b) What is the voltage (V.) on the capacitor 15-sec after closing the switch? V//. For the circuit shown in the figure, write 2.1 (1.5 points) .) The Kirchhoff current equation for the node labeled A. R - V . R b) The Kirchhoff loop equation for the entire left-loop. c) The Kirchhoff loop equation for the entire right-loop. JO IT:.V ENG #$ 4>) $ 0 q ~ _ 25'C... Lo claw