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General Physics 2 Worksheet 1 Kirchhoff's Laws A. Answer the following problem. 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 8V -10V -10V +18V -6V 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 3. Resistors of RI= 1092, R2 - 402 and R3 - 80 are connected up to two batteries as shown. Given the loop and current direction below. Find the voltages and current through each resistor. (10pts) i1 C i1- 12 i1 E2 R1 12V 100 WWW R3 WWW 80 E1 20V D4. Using KVL and KCL, find the currents and voltage drops across each resistor. (10pts) R1 200 500 R3 10V 5V 100