For resistors in PARALLEL, the equivalent resistance is given by:
AR₁ − R₂
BR₁ × R₂
C1/R = 1/R₁ + 1/R₂ + ...
DR₁ + R₂
Answer & Solution
Correct answer: C. 1/R = 1/R₁ + 1/R₂ + ...
For parallel: voltage is same across each, currents add. 1/R_eq = Σ(1/Rᵢ). Equivalent is always LESS than any individual.
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