Question: Kirchhoff?s Rules: Three currents have been labeled in the circuit below. Using these, determine the following: a) A relationship between these three currents [junction rule]

Kirchhoff?s Rules: Three currents have been labeled in the circuit below. Using these, determine the following: a) A relationship between these three currents [junction rule] b) 3 expressions, corresponding to the voltage change around each of the three loops: Upper, lower, outer [loop rule]. Express each in terms of the three currents (but do not use your result in (a) to simplify ? yet!) c) Express the voltage difference between points C and D (VCD) on the diagram (again, do not simplify the currents yet) d) Now ? solve for currents I1 ? I3 and VCD. Clearly state whether point C or D is at the higher potential. 2 Q A 12 V 1 2 3 Q 2 Q 8 V 1 Q 10 V 1 Q 5 Q

202 12 V A L 1 ww 3 www www 202 C D 8 V 1 www 10 V B 1 5

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