Electronic Devices - Bipolar Junction Transistors - Discussion
Discussion Forum : Bipolar Junction Transistors - General Questions (Q.No. 2)
2.
A transistor amplifier has a voltage gain of 100. If the input voltage is 75 mV, the output voltage is:
Discussion:
5 comments Page 1 of 1.
Aklilu kendu said:
8 years ago
Gain = output/input.
Gain = 100.
Input = 75mv.
Output = input * gain.
Output =75mv * 100.
Output =7500mv.
mv=1/1000v.
Output = 7.5v.
Gain = 100.
Input = 75mv.
Output = input * gain.
Output =75mv * 100.
Output =7500mv.
mv=1/1000v.
Output = 7.5v.
Ashish Jadhav said:
9 years ago
Gain = (output voltage)/(input voltage).
We have,
Gain100; and Input voltage 75mV = 75 * 10^-3.
Then putting that values in the formula of gain we get,
100 = (output voltage)/(75 * 10^-3).
Output voltage = 100 * (75 * 10^-3).
= 7.5V.
We have,
Gain100; and Input voltage 75mV = 75 * 10^-3.
Then putting that values in the formula of gain we get,
100 = (output voltage)/(75 * 10^-3).
Output voltage = 100 * (75 * 10^-3).
= 7.5V.
Shashidhar said:
1 decade ago
Voltage gain = 100.
Voltage Input = 100MV.
Gain = v(output)/voltage input.
Gain*voltage input = v(output).
100*75mV = v(output) ; m=1/1000;
100*75*1/1000 = 7.5v.
V(output) = 7.5v.
Voltage Input = 100MV.
Gain = v(output)/voltage input.
Gain*voltage input = v(output).
100*75mV = v(output) ; m=1/1000;
100*75*1/1000 = 7.5v.
V(output) = 7.5v.
Joshua Mukoma said:
1 decade ago
Let A be the voltage gain, Vo be output voltage and Vin the input voltage,
A = Vo/Vin therefore,
Vo = A*Vin = 100*75*10^-3 .
Thus Vo = 7.5V.
A = Vo/Vin therefore,
Vo = A*Vin = 100*75*10^-3 .
Thus Vo = 7.5V.
Senthil said:
1 decade ago
voltage gain=vout/vin.
100=vout/75mv(.075v)
100*.075=7.5v
100=vout/75mv(.075v)
100*.075=7.5v
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