Physicsmedium · Past Paper
If two identical resistors are connected in series, the total resistance is R_s. If they are connected in parallel, the total resistance is R_p. What is R_s / R_p?
A1
B2
C4
D0.5
✓ Correct Answer: C — 4
R_s = R+R = 2R. R_p = R/2. R_s/R_p = 2R / (R/2) = 4.
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