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A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage?
- A1 M©
- B24 k©
- C18 k©
- D12 k©
Correct answer: D
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CCommunity
12 k©
0
CCommunity
For two resistors in series
R1 = 12 kohm + 12 kohm =24 kohm
As voltage divider formula is given as
Vout = Vin × (R2 / R1+R2)
Vout /Vin = R2/R1+R2
For most effect Vout/Vin should be minimum i.e. value of R2 should be as low as possible.
Thus, R2 = 12 kohm
R1 = 12 kohm + 12 kohm =24 kohm
As voltage divider formula is given as
Vout = Vin × (R2 / R1+R2)
Vout /Vin = R2/R1+R2
For most effect Vout/Vin should be minimum i.e. value of R2 should be as low as possible.
Thus, R2 = 12 kohm