The currents in the three branches of a parallel circuit are 3A, 4A and 5A. What is the current leaving it?
A. 0A
B. Insufficient data provided
C. The largest one among the three values
D. 12A
Answer:D
The currents in the three branches of a parallel circuit are 3A, 4A and 5A. What is the current leaving it?
A. 0A B. Insufficient data provided C. The largest one among the three values D. 12A
Explanation: The total current leaving a node is the same as the current that enters it. Total I=I1+I2+I3=3+4+5=12A.