Question:-
In the circuit shown in Fig. Q.34 , b for both the BJTs is 99.

Assuming the thermal voltage to be 50 mV, the input resistance Ri is
Option (A)
650 ohm
Option (B)
25 k ohm
Option(C)
40 k ohm
Option(D)
65 k ohm
Correct Option:
(D)
question-answer-faq-1988