Q.1     Which of the following has the lowest output impedance?
A)    Fixed-bias
B)    Voltage-divider
C)    Emitter-follower
D)    None of these
Ans : C

Q.2    Which of the h-parameters corresponds to r_e in a common-base configuration ?
A)    h_ib
B)    h_fb
C)    h_rb
D)    h_ob
Ans : B

Q.3    For a common-emitter amplifier, the purpose of swamping is?
A)    To minimize gain
B)    To reduce the effect of r'_e
C)    To maximize gain
D)    No purpose
Ans : B

Q.4    What is the typical value of the current gain of a common-base configuration?
A)    Less than 1
B)    Between 1 and 50
C)    Between 100 and 200
D)    Undefined
Ans : A

Q.5    An emitter-follower is also known as?
A)    Common-emitter amplifier
B)    Common-base amplifier
C)    Common-collector amplifier
D)    Darlington pair
Ans : C

Sources