UNIT II AMPLIFIERS Quiz

What is the small signal model used for in amplifiers?

• To analyze the behavior of an amplifier with small variations in input signal.

• To cook breakfast

• To communicate with aliens

• To predict the weather

What are the different types of amplifiers that can be analyzed using the T small signal model?

• Common emitter, common base, and common collector amplifiers

• Feedback amplifier, differential amplifier, operational amplifier

• Voltage amplifier, current amplifier, power amplifier

• Class A, Class B, Class C amplifiers

What is the gain of a CE amplifier?

• Voltage gain

• Power gain

• Current gain

• Resistance gain

What is the frequency response of a CB amplifier?

• From 0 Hz to 1 MHz

• From 0 Hz to 100 kHz

• From 0 Hz to fT

• From 0 Hz to 10 Hz

What is the purpose of MOSFET small signal model in amplifiers?

• To simplify the analysis and design of the amplifier circuits

• To increase the complexity of the amplifier circuits

• To reduce the efficiency of the amplifier circuits

• To complicate the analysis and design of the amplifier circuits

How is the gain of a CC amplifier calculated?

• Gain = gm * (RC || RL)

• Gain = -gm / (RC || RL)

• Gain = -gm * (RC + RL)

• Gain = -gm * (RC || RL)

What are the key components of the T small signal model?

• Base resistance (rb), emitter capacitance (ce), and collector capacitance (cc)

• Emitter resistance (re), base spreading resistance (rb), and collector resistance (rc)

• Input resistance (ri), output resistance (ro), and feedback resistance (rf)

• Voltage resistance (rv), current resistance (ri), and power resistance (rp)

What is the significance of frequency response in amplifiers?

• It determines the color of the sound produced by the amplifier.

• It controls the temperature of the amplifier.

• It measures the weight of the amplifier.

• It determines how the gain of the amplifier varies with frequency.

How does the MOSFET small signal model differ from the T small signal model?

• The MOSFET small signal model includes the transconductance parameter (gm) and the output resistance (ro), while the T small signal model does not.

• The MOSFET small signal model includes the transconductance parameter (gm) and the output conductance (ro), while the T small signal model does not.

• The MOSFET small signal model includes the transconductance parameter (gm) and the input conductance (gm), while the T small signal model does not.

• The MOSFET small signal model includes the output conductance (ro) and the input conductance (gm), while the T small signal model does not.

What are the applications of the T small signal model in real-life scenarios?

• Agricultural irrigation

• Building construction

• Analyzing and designing amplifiers

• Cooking and baking