Question

An npn transistor has a beta cut-off frequency
fb of 1MHz and common emitter
short circuit low-frequency current gain
bo of 200 it unity gain frequency
fT and
the alpha cut-off frequency
fa respectively are
(A) 200 , 201 MHz MHz
(B) 200 ,199 MHz MHz
(C) 199 200 MHz MHz ,
(D) 20 , 1 200 MHz MHz

Answer 1

20,1200MHzMHz.............