Three Resistors Connected in Parallel Each Carry Currents Labeled I₁,I₂

question 73

Multiple Choice

Three resistors connected in parallel each carry currents labeled I₁,I₂ and I₃.Which of the following expresses the value of the total current I_T in the combined system?

• A)I_T = I₁ + I₂ + I₃
• B)I_T = (1/I₁ + 1/I₂ + 1/I₃)
• C)I_T = I₁ = I₂ = I₃
• D)I_T = (1/I₁ + 1/I₂ + 1/I₃)−¹

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