Assuming ideal op amps, find the voltage gain. V₁/V; and input resistance for circuits a, b, c, and d. vo- 15k 15k 15k Solutions 90k + 90k ovo b) 15k viow d) 15к viomb 15t + mr 90k mr gok vo 15k

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Multistage Amplifier

The multistage amplifier is generally a voltage or power amplifier. The multistage amplifier has a number of single stage amplifier that are cascaded together. Since a single stage amplifier output is not useful, they are being replaced with multistage amplifiers or multistage transistor amplifiers. The multistage amplifier are used where the gain required is high or the input signal is very small such that only a single stage amplifier cannot amplify it.