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



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