If an npn transistor (with C = 0.3 pF) has a unity gain cut-off frequency fT of 400 MHz at a d.c. bias current Ic = 1 mA, then value of its C is approximately (VT = 26 mV)

If an npn transistor (with C = 0.3 pF) has a unity gain cut-off freque

1.	If an npn transistor (with C = 0.3 pF) has a unity gain cut-off frequency fT of 400 MHz at a d.c. bias current Ic = 1 mA, then value of its C is approximately (VT = 26 mV)
A.	15
B.	30
C.	50
D.	96
Answer» B. 30

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If an npn transistor (with C = 0.3 pF) has a unity gain cut-off frequency fT of 400 MHz at a d.c. bias current Ic = 1 mA, then value of its C is approximately (VT = 26 mV)

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