Vidyalelo
ECE · Q276

Analog Electronics

Engineering and GATE · ECE · question 276

Q276

An npn BJT has gm = 38 mA/V, Cµ = 10-14 F, Cπ = 4 × 10-13 F, and DC current gain β0 = 90. For this transistor fT and fβ are

A.
fT = 1.64 × 108 Hz and fβ = 1.47 × 1010 Hz
B.
fT = 1.47 × 1010 Hz and fβ = 1.64 × 108 Hz
Answer
C.
fT = 1.33 × 1012 Hz and fβ = 1.47 × 1010 Hz
D.
fT = 1.47 × 1010 Hz and fβ = 1.33 × 1012 Hz

Answer: Option B

Solution

Answer: Option B
No explanation is given for this question Let's Discuss on Board