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MCAT Question of the Day
Q:
Four wires in a circuit for Christmas lights meet at a central point X. The current in three of the wires is measured and it is found that each wire has a current of 3 A directed towards point X. Which of the following is the current and direction of current in the fourth wire?
A
0 A
B
3 A directed towards point X
C
3 A directed away from point X
D
9 A directed away from point X
Circuits
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