4. In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is
A. 3 mA
B. 0 A
C. 12 mA
D. 48 mA
4. In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is
A. 3 mA
B. 0 A
C. 12 mA
D. 48 mA