Exam-style question
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If a circuit has a total resistance of 10 Ω and a current of 5 A, what is the total power consumed? Scenario focus: a component-comparison problem, where the answer must identify which quantity changes and which equation remains valid.
- A.50 W
- B.25 W
- C.10 W
- D.5 W
Model answer
What a good answer should say
- 25 W
Explanation
Why this works
The correct answer is 25 W. In this version, the deciding idea is a component-comparison problem, where the answer must identify which quantity changes and which equation remains valid.
That makes the correct option the one that uses the appropriate electricity quantity and unit, while the distractors either swap related circuit quantities or apply a rule from the wrong circuit situation.
Common mistake
No common mistake is linked to this question yet.