Question

anyone please explain the answer ,​

Answer 1

Answer:

i think. c is the answer for your question

Answer 2

we know that ,

transconductance of an amplifier is defined as the ratio of change in output current to change in input voltage

transconductance (gm)

= ∆ I c / ∆V i

= ∆ I c /∆Ib R i

= C/R i

voltage gain(G) = ∆ Ic Rl /∆Ib Ri

I c (collector current or output current)

I b ( base current or input current)

current gain (C) = Ic/Ib

G = ( C/R i ) R l

G = (gm) R I

(G ) is directly proportional to current gain (C)

G ' /G = 0.02/0.03

G ' = 2G/3

Ans is C