Three amplifiers x,y,z are connected in series. if the voltage gains of x,y and z are 10,20and 30 respectively and the input signal is 1 mv peak value ,then what is the output signal voltage (peak value) if dc supply voltage is 10 v?
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Gin of three amplifiers in series = A₁ x A₂ x A₃
total gain = 10 x 20 x 30 = 6000
Input = 1mV
Output = ( 1/1000) x 6000 =6 V
Power supply is 10 V which is greater than output voltage 6 V
No saturation of output occurs
Output signal peak is 6 V
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