Question: The stability factor of a collector feedback bias circuit is_______________ that of base resistor bias?

• 1. The same as
• 2. More than
• 3. Less than
• 4. None of the above

Question: If the temperature increases, the value of VCE_________________?

• 1. Remains the same
• 2. Is increased
• 3. Is decreased
• 4. None of the above

Question: The value of stability factor for a base resistor bias is________________?

• 1. RB (ß+1)
• 2. (ß+1)RC
• 3. (ß+1)
• 4. 1-ß

Question: In voltage divider bias, VCC = 25 V; R1 = 10 kO; R2 = 2.2 V ; RC = 3.6 V and RE =1 kO. What is the emitter voltage?

• 1. 7 V
• 2. 3 V
• 3. V
• 4. 8 V

Question: In voltage divider bias, operating point is 3 V, 2 mA. If VCC = 9 V, RC = 2.2 kO, what is the value of RE ?

• 1. 2000 O
• 2. 1400 O
• 3. 800 O
• 4. 1600 O

Question: The disadvantage of voltage divider bias is that it has _________________?

• 1. High stability factor
• 2. Low base current
• 3. Many resistors
• 4. None of the above

Question: For proper amplification by a transistor circuit, the operating point should be located at the_____________ of the d.c. load line?

• 1. The end point
• 2. Middle
• 3. The maximum current point
• 4. None of the above

Question: Thermal runaway occurs when_________________?

• 1. Collector is reverse biased
• 2. Transistor is not biased
• 3. Emitter is forward biased
• 4. Junction capacitance is high

Question: The operating point ________________ on the a.c. load line?

• 1. Also line
• 2. Does not lie
• 3. May or may not lie
• 4. Data insufficient

Question: The operating point is also called the _______________?

• 1. Cut off point
• 2. Quiescent point
• 3. Saturation point
• 4. None of the above