##### EE 332 op amp question

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# Op-Amp Introduction

- Read Chapters 1-2 in the text Op Amps for Everyone Fourth Edition
- For the configuration below:

[img width="494" height="489" alt="" src="https://angel.grantham.edu/AngelUploads/Content/EE33220133636242/_assoc/DDB147E7AE264C978BCF6102791D2A21/image1.png">

- With Vin = 4Vrms, f = 1kHz answer the following for each case:

- Calculate voltage gain with RF = 1kohm, RG = 5kohm
- Calculate voltage gain with RF = 1kohm, RG = 1kohm
- Calculate voltage gain with RF = 1kohm, RG = 5kohm
- Calculate voltage gain with RF = 5kohm, RG = 5kohm
- Describe the effect of on voltage gain of keeping RF constant and increasing or decreasing RG
- Describe the effect of on voltage gain of keeping RG constant and increasing or decreasing RF

[img width="488" height="460" alt="" src="https://angel.grantham.edu/AngelUploads/Content/EE33220133636242/_assoc/DDB147E7AE264C978BCF6102791D2A21/image2.png">

- With Vin = 5Vrms, f = 1kHz answer the following for each case:

- Calculate voltage gain with RF = 1kohm, RG = 5kohm
- Calculate voltage gain with RF = 1kohm, RG = 1kohm
- Calculate voltage gain with RF = 1kohm, RG = 5kohm
- Calculate voltage gain with RF = 5kohm, RG = 5kohm
- Describe the effect of on voltage gain of keeping RF constant and increasing or decreasing RG
- Describe the effect of on voltage gain of keeping RG constant and increasing or decreasing RF
- What does the negative sign in the voltage gain formula indicate?

[img width="517" height="509" alt="" src="https://angel.grantham.edu/AngelUploads/Content/EE33220133636242/_assoc/DDB147E7AE264C978BCF6102791D2A21/image3.png">

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

- Calculate Vout

[img width="529" height="531" alt="" src="https://angel.grantham.edu/AngelUploads/Content/EE33220133636242/_assoc/DDB147E7AE264C978BCF6102791D2A21/image4.png">

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

- Calculate Vout

Grading Criteria Assignments | Maximum Points |

Meets or exceeds established assignment criteria | 40 |

Demonstrates an understanding of lesson concepts | 20 |

Clearly presents well-reasoned ideas and concepts | 30 |

Uses proper mechanics, punctuation, sentence structure, and spelling | 10 |

Total | 100 |

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