Practice Problem on Adding Resistors
                R1=7 Ohm    R2=3 Ohm
          +------/\/\/\------/\/\/\------+
          |                              |
          |     R3=9 Ohm    R4=2 Ohm     |
    ------+------/\/\/\------/\/\/\------+------
          |                              |
          |           R5=7 Ohm           |
          +------------/\/\/\------------+
If the current through R4 is 2 A, what is the voltage across R2? Give your answer to two decimal places.

ANSWER = 6.60 V