3. EMG electrodes are placed in a muscle and the following circuit diagram shows their simplified circuit model. Write an equation showing the output voltage (Vo) of the amplifier as a function of the signal (S₁), frequency (f) and circuit values. C₁ W R₁ www R₁ Amp gain = A + R₂ VO

Q: Find RAB

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A: We need to find out unknown voltage for given circuit by using of source transformation .

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Q: If the no load secondary voltage of a 1-phase transformer is 235 V and full load secondary voltage…

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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.