Define the terms input resistance and current amplification factor of a transistor in CE mode.

Define input resistance, output resistance and current amplification of a transistor.

Define ac signal current amplification factor (beta) .

Define the term current density.

For a CE transistor amplifier, the audio signal across the collector resistance of 2kOmega is 2V. Suppose the current amplification factor of the transistor is 100, find the input signal voltage and base current, if the base resistance is 1 k Omega .

What is an amplifier? Draw the simple circuit of transistor amplifier in CE mode.