A. Answer the following proble 1. Use Kirchhoff's Voltage Law to find the missing voltage differences in the following circuits. For these circuits, current flows clockwise and potential difference is measured clockwise. (5pts) -9V -3V WWW W -8V F-10V-10V +18V -SV WW -GV V 2. Below are two nodes in different circuits. Each has four currents flowing either in or out of it. For each, use Kirchhoff's Current Law to fill in the value of the missing current. [Note each sign (+/-) and direction) (5pts) -10 mA 25 mA 75 A 45 A 50 mA 90 A MA 4. Resstors of R1= 102, R2 = 42 and R3 = 82 are connected up to two batteries as shown. Given the loop and current direction below. Find the voltages and current through each resistor. (10pts) B 1 1 S 11-12 i1 4 Ez R1 12V R2 100 - 40 R3 WV 80 20V A D 3. Using KVL and KCL, find the currents and voltage drops across each resistor. (10pts)