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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