Exam-style question
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In a potential divider circuit, if one resistor is 10 kΩ and the total voltage is 20 V, what is the output voltage if the second resistor is 5 kΩ?.
Model answer
What a good answer should say
- The output voltage is 13.33 V.
Explanation
Why this works
This question assesses the ability to apply potential divider principles. The output voltage can be calculated using the formula V_out = (R2 / (R1 + R2)) * V_total.
Substituting the values gives V_out = (5 / (10 + 5)) * 20 = 13.33 V. This shows the student can effectively use the potential divider formula in a practical scenario.
Common mistake
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