For good stabilized biasing of the transistor of the CE Amplifier of fig, we should have

Which of the following statements are correct for basic transistor Amplifier configurations?

Of the four biasing circuits shown in Fig. For a BJT, indicate the one which can have maximum bias stability:

The transistor in the amplifier shown below has following parameters: $$${h_{fe}}\, = \,100,\,{h_{ie}}\, = \,2k\Omega ,\,{h_{re}}\, = \,0,$$$ $${h_{oe}}\, = \,0.05\,\,m\Omega .\,\,C$$ is very large.

The output impedance is