201. A transistor is said to be in quiescent state when—

1. 1. No signal is applied to the input

   
   
   

   2. It is unbiased

   
   
   

   3. No currents are flowing

   
   
   

   4. Emitter junction bias is just equal to collector junction bias
      

   
   
   

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   No signal is clippled to the input

   Correct Option: A

   No signal is clippled to the input

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202. A BJT is said to be operated in the saturated region if—
     

1. 1. Both the junctions are reverse biased

   
   
   

   2. Base-emitter junction is reverse biased and base-collector is forward biased

   
   
   

   3. Both junctions are forward biased

   
   
   

   4. None of these

   
   
   

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   BJT is said to be operated in saturation region when both the junctions are forward biased.

   Correct Option: C

   BJT is said to be operated in saturation region when both the junctions are forward biased.

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203. Which is the most heavily doped region in a transistor?

1. 1. Emitter

   
   
   

   2. Collector

   
   
   

   3. Base

   
   
   

   4. All regions are equally doped

   
   
   

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   Emitter is the most heavily doped region in a transistor because all the charge carriers emitted at the emitter region.

   Correct Option: A

   Emitter is the most heavily doped region in a transistor because all the charge carriers emitted at the emitter region.

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204. n-p-n transistors prefered over p-n-p—

1. 1. npn transistor is smaller in area

   
   
   

   2. Mobility of electron is higher than the hole

   
   
   

   3. Mobility of hole electron is higher than the hole electron

   
   
   

   4. None of the above
      

   
   
   

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   NA

   Correct Option: B

   NA

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205. The highest area in a transistor—

1. 1. Emitter

   
   
   

   2. Base

   
   
   

   3. Collector

   
   
   

   4. All

   
   
   

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   The area of collector kept highest because interaction of all charge carriers takes place at the collector region.

   Correct Option: C

   The area of collector kept highest because interaction of all charge carriers takes place at the collector region.

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