The transistor circuit shown in the figure given below uses

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The transistor circuit shown in the figure given below uses a silicon transistor with V_BE = 0.7 V, I_C ≈ I_E and a dc current gain of 100. The value of V₀ is

1. 4.65 V
2. 5 V
3. 6.3 V
4. 7.32 V

Correct Option: A

Given : I_C ≈ I_E
β = 100
I_E ≈ I_C = β I_B
∴ I_C ≈ I_E = 100 I_B
V_CC – R_B I_B – V_BE – I_E R_E = 0
∴ 10 – (10 kΩ × I_B) – 0.7 – 100 I_F = 0
⇒ 10 – 10 × 10³ I_B – 0.7 – 100 × 100 I_B = 0
⇒ 10 – 10 I_B – 0.7 – 10 I_B = 0

⇒ I_B =	9.3	=	0.93	mA = + 0.465 mA
	20		2

∴ I_E = 0.465 × 100 = 46.5 mA
∴ V₀ = 100 × 46.5 mA
= 4650 mV = 4.65 V