Exam-style question
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What is the total resistance in a series circuit with resistances of 4 Ω, 6 Ω, and 10 Ω?.
- A.20 Ω
- B.10 Ω
- C.6 Ω
- D.4 Ω
Model answer
What a good answer should say
- 20 Ω
Explanation
Why this works
In a series circuit, the total resistance is the sum of individual resistances. The formula is R_total = R1 + R2 + R3.
Substituting the values: R_total = 4 Ω + 6 Ω + 10 Ω = 20 Ω. Therefore, the total resistance is 20 Ω.
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