A silicon transistor is biased with base resistor method. If ß=100, VBE =0.7 V, zero signal collector current IC = 1 mA and VCC = 6V , what is the value of the base resistor RB ?
Correct answer: B. 530 kO
- A. 105 kO
- B. 530 kO
- C. 315 kO
- D. None of the above
Explanation
The base current is I_B = I_C/β = 1 mA/100 = 10 μA, and the base resistor is R_B = (V_CC − V_BE)/I_B = (6 − 0.7)/10 μA = 530 kΩ. Hence option b matches the calculation.
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