Engineering Board Exam Reviewer · Circuit Theorems and Conversions · hard
In the circuit shown, V1=12 V, V2=6 V, R1=15, , R2=2, , and R3=10, . Use superposition to find the net current through R2 (magnitude).
- 0.15 A
- 0.6 A
- 1.05 A
- 2.1 A
Answer
C. 1.05 A
Solution
Add the two contributions with their directions. With V1 alone the current in R2 is 600 mA (downward), and with V2 alone it is 450 mA (downward). The net current is 1.05 A in magnitude.
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