The fT of a BJT is related to its gm, Cπ and Cµ as—

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The f_T of a BJT is related to its g_m, C_π and C_µ as—

1. f_T = (C_π + C_µ) g_m
2. f_T = π (C_π + C_µ)
  g_m
3. f_T = g_m
  2π (C_π + Cµ)
4. f_T = g_m
  (C_π – C_µ)

Correct Option: C

The unity-gain bandwidth frequency of a BJT is related to its gm, Cπ and Cµ by relation

f_T =	g_m
	2 (Cπ + Cµ)