In a base resistor method, if the value of ß changes by 50, then collector current will change by a factor ___________________?

Related Mcqs:

1. 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 ?

   A. 105 kO
   B. 530 kO
   C. 315 kO
   D. None of the above

2. The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)___________?

   A. 6.8 kΩ
   B. 2.2 kΩ
   C. 6.8 kΩ and 10 kΩ
   D. 2.2 kΩ and 1 kΩ

3. A 12 kΩ resistor, a 15 kΩ resistor, and a 22 kΩ resistor are in series with two 10 kΩ resistors that are in parallel. The source voltage is 75 V. Current through the 15 kΩ resistor is approximately___________?

   A. 14 mA
   B. 1.4 mA
   C. 5 mA
   D. 50 mA

4. The parallel combination of a 470 Ω resistor and a 1.2 kΩ resistor is in series with the parallel combination of three 3 kΩ resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of____________?

   A. 470 Ω or 1.2 kΩ
   B. 3 kΩ
   C. 470 Ω
   D. 1.2 kΩ

5. The stability factor of a collector feedback bias circuit is_______________ that of base resistor bias?

   A. The same as
   B. More than
   C. Less than
   D. None of the above

6. The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 KΩ resistor is__________?

   A. 25 %
   B. 20 %
   C. 100 %
   D. 50 %

7. If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?

   A. 6 mA
   B. mA
   C. 3 mA
   D. 1 mA

8. If the power rating of a transistor is 1W and collector current is 100mA, then maximum allowable collector voltage is________________?

   A. 1V
   B. 100V
   C. 20V
   D. 10V

9. The value of stability factor for a base resistor bias is________________?

   A. RB (ß+1)
   B. (ß+1)RC
   C. (ß+1)
   D. 1-ß

10. If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?

    A. 20 V
    B. 5 V
    C. 2 V
    D. 10 V