SIMPLE ELECTRIC CIRCUITS U 445
Repeat Prob. 27.52 if the current ﬂows in the opposite direction and R = 0.7 Q.
I We proceed with the ﬁrst method of Prob. 27.52. V, — VA = (—6 V) + (3 A)(2 9) + (9 V) + (3 A)(0.7 Q) =
11.1 V. V3 is the higher potential.
Experiment 2: Kirchhoff's Laws and Basic Instrumentation
The objective of this experiment is to develop proficiency in the use of a digital multimeter in the
context of verifying Kirchhoff's Voltage and Current Laws (KVL and KCL).