Practice MCAT Question - Q36 - Answer!
If R1 = 2.0 Ohms and R2 = 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
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The correct answer is (A). The resistors are in parallel so:
Req = R1R2 / (R1 + R2) = 12 Ohms2 / 8 Ohms = 1.5 Ohms