A junction transistor operating at room temperature with

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A junction transistor operating at room temperature with I_C = 2 mA, where (kT / q) = 20 mV and β = 100. The values of parameter g_m in mhos and r_π in ohm respectively are

1. 0.04 and 2500
2. 0.08 and 1250
3. 0.5 and 800
4. 0.08 and 5000

Correct Option: B

g_m =	I_C	=	2	= 0.08
	V_T		25

r_m =	β	=	100	= 1250
	g_m		0.08