GATE ECE 2010 | Bipolar Junction Transistor Question 28 | Analog Circuits

The amplifier circuit shown below uses a silicon transistor. The capacitors C_C and C_E can be assumed to be short at signal frequency and the effect of output resistance r₀ can be ignored. If C_E is disconnected from the circuit, which one of the following statements is TRUE? GATE ECE 2010 Analog Circuits - Bipolar Junction Transistor Question 58 English

GATE ECE 2010 Analog Circuits - Bipolar Junction Transistor Question 58 English

The input resistance R_i increases and the magnitude of voltage gain A_V decreases

The input resistance R_i decreases and the magnitude of voltage gain A_V decreases

Both input resistance R_i and the magnitude of voltage gain A_V decrease

Both input resistance R_i and the magnitude of voltage gain A_V increase

GATE ECE 2006

MCQ (Single Correct Answer)

-0.3

The input impedance (Z_i) and the output impedance (Z_o) of an ideal transconductance (voltage controlled current source) amplifier are

Z_i = 0, Z_o = 0

Z_i = 0, Z_o = $$\infty$$

Z_i = $$\infty$$, Z_o = 0

Z_i = $$\infty$$, Z_o = $$\infty$$

GATE ECE 2005

MCQ (Single Correct Answer)

-0.3

The cascode amplifier is a multistage configuration of

CC-CB

CE-CB

CB-CC

CE-CC

GATE ECE 2004

MCQ (Single Correct Answer)

-0.3

Assuming V_Cesat=0.2V and β = 50, the minimum base current (I_B) required to drive the transistor in the figure to saturation is GATE ECE 2004 Analog Circuits - Bipolar Junction Transistor Question 62 English