3. Compare between indirect and direct control circuits.

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Q: Determine: a) dc transistor terminal VCC = +12V voltages b) hie c) Rin d) vo RC 3.3k2 R1 47k2 Vo Si ...

A: Given circuit is Common emitter amplifier.

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Q: Np:Ng 6:1 D2 V. out Vp 120 Vac 60 Hz DA D3 R = 200 N From the circuit below, determine f out?

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Q: the Current I equal in network | lon loA (^

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Q: +18 V 8.2 kN 1.0 μF R2 22 k2 10 μF RE 680N 1.0 k. 두

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Q: . Find the current I11 and 12 from the circuit shown below ak ik 斗 タ太ヶ

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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.