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MCAT Question A Day - 8/20/13 - Answer!

If R= 2.0 Ohms and R= 6.0 Ohms, what is the total resistance of the circuit?



A.  1.5 Ohms
B.  4.0 Ohms
C.  8.0 Ohms
D.  12 Ohms



The correct answer is (A). The resistors are in parallel so:


R(eq) = R1R/ (R1 + R2)  = 12 Ohms / 8 Ohms = 1.5 Ohms

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