7 problems and they are cited from "electrical engineering" by Schwarz and oldham.
1. Design an op-amp circuit with R1′=1000Ω. A′=-10.R0′<10Ω.
2. Design an op-amp circuit with R1′>1MΩ. A′=+10.R0′<10Ω.
3. Two input voltages are v1(t) and v2(t). Design an op-amp circuit that will generatethe voltage 3v1(t)-2v2(t).Its input resistance must exceed 1 kΩ and its output resistance must be less than10 Ω. Use more than one op-amp if necessary.