# What is the preferred choice of amplifier configuration for each of these applications?(a) A single-transistor amplifier is needed that has a gain of approximately 80 dB and an input resistance of 100 kΩ.(b) A single-transistor amplifier is needed that has a gain of 52 dB and an input resistance of 250 kΩ.(c) A single-transistor amplifier is needed that has a gain of 30 dB and an input resistance of at least 5 MΩ.(d) A single-transistor amplifier is needed that has a gain of approximately 0 dB and an input resistance of 20 MΩ with a load resistor of 10 kΩ.(e) A follower is needed that has a gain of at least 0.98 and an input resistance of at least 250 kΩ with a load resistance of 5 kΩ.(f ) A single-transistor amplifier is needed that has a gain of +10 and an input resistance of 2 kΩ.(g) An amplifier is needed with an output resistance of 25 Ω.

Question

What is the preferred choice of amplifier configuration for each of these applications?
(a) A single-transistor amplifier is needed that has a gain of approximately 80 dB and an input resistance of 100 kΩ.
(b) A single-transistor amplifier is needed that has a gain of 52 dB and an input resistance of 250 kΩ.
(c) A single-transistor amplifier is needed that has a gain of 30 dB and an input resistance of at least 5 MΩ.
(d) A single-transistor amplifier is needed that has a gain of approximately 0 dB and an input resistance of 20 MΩ with a load resistor of 10 kΩ.
(e) A follower is needed that has a gain of at least 0.98 and an input resistance of at least 250 kΩ with a load resistance of 5 kΩ.
(f ) A single-transistor amplifier is needed that has a gain of +10 and an input resistance of 2 kΩ.
(g) An amplifier is needed with an output resistance of 25 Ω.

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