148. The value of stability factor for a base-resistor bias is
A. RB(3+ 1)
B. (13 + 1) RB
C. (f3 + 1)
D. 1 -13

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149.  In a practical biasing circuit, the value of RE is about
A. 10 ka
B. 1 Ma
C. 100 Ica
D.800fl

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150. A silicon transistor is biased with base resistor method. If D = 100,BE = 0.7 V, zero signal collector current lc = 1 mA and 'cc =6 V, what is the value of base resistor RR?
A. 105 Ica
B. 530 lcil
C. 315 Ica
D. none of the above

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151. In voltage divider bias, "cc = 25 V; R1 = 10 kfl; R2 = 2.2 k.G; Rc = 3.6 Id2 and RE = 1 kil. What is the emitter voltage?
A. 6.7 V
B. 5.3 V
C. 4.9 V
D. 3.8 V

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152. In the above question, what is the collector voltage?
A. 12.3 V
B. 14.8 V
C. 7.6 V
D. 9.7 V

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153. In voltage divider bias, operating point is 3 V, 2 mA. If VRc = 2.2 Ica, what is the value of RE?
A. 2000 a
B. 1400 a
C. 800 a
D. 1600 a

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154. A collector collects
A. electrons from the base in case of PNP transistor
B. electrons from the emitter in case PNP transistor
C. holes from the base in case of NPN transistor
D. holes from the base in case of PNP transistor.

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