A cylinder of fluid contains 4x1024 sodium ions, which are the only charge carriers, i.e., the only charged particles which are free to move. The dimensions of the cylinder are 25cm long, with a circular cross-section of radius 4mm. If a 5A current flows along the length of the cylinder, what is the drift velocity of the sodium ions? 3.9110-6 m/s 1.5610-6 m/s 2.9110-6 m/s 4.16x10 m/s Determine the currents for the following circuit when R = 2 Q2, R2 = 4 Q2, R3 = 10 Q2, and V = 20 V. ww R I = 2.35 A; I2 = 1.61 A ; I3 = 0.74 A I = 4.12 A; I2 = 1.15 A; I3 = 2.90 A I= 4.12 A; I2 = 2.94 A ; I3 = 1.18 A I = 3.12 A; I2 = 1.94 A ; I3 = 0.78 A Determine the current flowing across the 3Q2 resistor. I = 1.20 A I = 2.00 A I=0.55 A I = 0.83 A 6 V 30 ww 20 ww 20 www 20 20 The diameter of 0-gauge copper wire is 8.2 mm. Find the resistance of a 5km length of such wire used for power transmission. 0.17 x10-3 0.04 109 O 0.04 10-6 0.17 10 A defibrillator sends a 5A current through the chest of a patient by applying a 30,000V potential. What is the resistance of the path? 610-62 6103 Q 16 x10-92 161032