Analog Circuits -Op Amps

1. For the configuration below:
2. 

1. • With Vin = 4Vrms, f = 1kHz answer the following for each case:
     1. Calculate voltage gain with RF = 1kohm, RG = 5kohm
     2. Calculate voltage gain with RF = 1kohm, RG = 1kohm
     3. Calculate voltage gain with RF = 1kohm, RG = 5kohm
     4. Calculate voltage gain with RF = 5kohm, RG = 5kohm
     5. Describe the effect of on voltage gain of keeping RF constant and increasing or decreasing RG
     6. Describe the effect of on voltage gain of keeping RG constant and increasing or decreasing RF

3.  For the configuration below

1. • With Vin = 5Vrms, f = 1kHz answer the following for each case:
     1. Calcula te voltage gain with RF = 1kohm, RG = 5kohm
     2. Calculate voltage gain with RF = 1kohm, RG = 1kohm
     3. Calculate voltage gain with RF = 1kohm, RG = 5kohm
     4. Calculate voltage gain with RF = 5kohm, RG = 5kohm
     5. Describe the effect of on voltage gain of keeping RF constant and increasing or decreasing RG
     6. Describe the effect of on voltage gain of keeping RG constant and increasing or decreasing RF
     7. Wha t does the negative sign in the voltage gain formula indicate? 

4.  For the configuration below:

1. • With V1 = 5Vrms, V2 = 4Vrms, VN = 2Vrms, R1 = 1kohm, R2 = 2kohm, RN = 3kohm, RF = 5kohm answer the following:
     1. Calculate Vout

5.  For the configuration below:

1. • With V1 = 5Vrms, V2 = 4Vrms, R1 = 1kohm, R2 = 2kohm, R3 = 3kohm, R4 = 5kohm answer the following:
     1. Calculate Vout