Three Resistors with Values R₁,R₂ and R₃,respectively,are Connected in Parallel

question 91

Multiple Choice

Three resistors with values R₁,R₂ and R₃,respectively,are connected in parallel.Which of the following expresses the total resistance,R_T,of the three resistors when connected in parallel?

• A)R_T = R₁ + R₂ + R₃
• B)R_T = (1/R₁ + 1/R₂ + 1/R₃)
• C)RT = R₁ = R₂ = R₃
• D)R_T = (1/R₁ + 1/R₂ + 1/R₃)−¹

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