A student in Trinidad sets up a parallel circuit with two identical 6 Ω resistors. What is the combined resistance?

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Question

A student in Trinidad sets up a parallel circuit with two identical 6 Ω resistors. What is the combined resistance?

Accepted Answer

3 Ω — Award 1 mark for applying 1/R_total = 1/R₁ + 1/R₂ = 1/6 + 1/6 = 2/6, so R_total = 3 Ω. A is incorrect — this adds the resistances as if in series. C is incorrect — this assumes only one resistor is effective. D is incorrect — this is the value of 1/R_total, not R_total.

Answer

12 Ω

Answer

3 Ω

Answer

6 Ω

Answer

0.33 Ω

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