Resistors of values R₁ and R₂ in parallel give equivalent resistance:
AR₁ + R₂
B(R₁ − R₂)²
C(R₁ + R₂)/2
DR₁ R₂ / (R₁ + R₂)
Answer & Solution
Correct answer: D. R₁ R₂ / (R₁ + R₂)
1/R = 1/R₁ + 1/R₂.
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