Engineering Board Exam Reviewer · Series-Parallel Circuits · medium
A voltage divider uses R1=R2=10 k across a 12 V source. A 10 k load is connected across R2. What is the output voltage across the load?
- 6 V
- 4 V
- 3 V
- 8 V
Answer
B. 4 V
Solution
R2 RL=5 k . Vout=12·5/10+5=4 V (it would be 6 V with no load).
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