1.

Calculate the gain ofa negative feedback amplifier with an internal gain of A = 100 and feedback factor beta =(1)/(1000)

Answer»

SOLUTION :Fornegativefeedback`A_f = ( A )/( 1+A BETA)`
` thereforeA_f = (100)/( 1+100 XX (1/1000) ) = (100)/( 1+0.1 ) = (100)/( 1.1)`
`= 90.909~= 90.91`


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