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Answer:0.168 V
Explanation:
Keep in mind that there are two inverting and one non-inverting amplifiers.. gain of whole system is G= G1*G2*G3
G1 non-inverting
G= (1+10k/5k)*(-5k/5k)*(100k/5k)
Vout/Vin=60;
=> Vin= 0.168;
Answer:
Vgain = Vout / Vin
Vgain = 2,500 decibels
Step-by-step explanation:
Given : Vin = 10 mV
Vout = 25 V
Asked : Voltage gain
Solution:
Vgain = Vout / Vin
Vgain = 25 V / 10mV
Vgain = 25V / 10x10-³ V
Vgain = 25 V / 0.01 V
Vgain = 2,500 decibels
In finding the Voltage gain, we will use the formula Vgain = Vout/ Vin.
In which Voltage gain (Vgain) is the result of dividing the output voltage (Vout) by the input voltage (Vin). So, we will divide 25V by 10mV. Since they are not having the same unit and we cannot divide numbers with different units, let's convert 10 mV to V. Change 10 mV to V by using the power conversion method. The result will be 10x10-³ V which equal to 0.01 V because milli is equivalent to 1x10-³. Then, we can now divide the numbers. Cancel the unit V or voltage by using the unit cancellation step (cancel the same units found in the numerator and denominator). Now we can divide the numbers and the result will be 2,500. Then don't forget the unit for voltage gain which is decibels, that is constant. Therefore the final answer is 2,500 decibels.