166. Choose the correct statement—
     

1. 1. MOSFET has positive temperature coefficient (TC) whereas BJT has – Ve TC
      

   
   
   

   2. Both MOSFET and BJT have positive TC.
      

   
   
   

   3. Both MOSFET and BJT have negative TC.
      

   
   
   

   4. MOSFET has negative TC where BJT

   
   
   

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   NA

   Correct Option: A

   NA

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167. As compared to power MOSFET, a BJT has—
     

1. 1. Lower switching losses but higher conduction loss
      

   
   
   

   2. Higher switching losses and higher conduction loss
      

   
   
   

   3. Higher switching losses but lower conduction loss
      

   
   
   

   4. Lower switching losses and lower conduction loss

   
   
   

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   NA

   Correct Option: C

   NA

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168. A power Mosfet has three terminals called—
     

1. 1. Collector, emitter and base
      

   
   
   

   2. Drain source and base
      

   
   
   

   3. Drain, source and gate
      

   
   
   

   4. Collector, emitter and gate

   
   
   

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   NA

   Correct Option: C

   NA

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169. When a line commutated converter operates in a Inverter mode—
     

1. 1. It draws both real and reactive power from the A.C. supply
      

   
   
   

   2. It delivers both Real and reactive power to the A.C. supply
      

   
   
   

   3. It delivers real power to the A.C. supply
      

   
   
   

   4. It draws reactive power from the A.C. supply

   
   
   

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   NA

   Correct Option: C

   NA

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170. In a BJT—
     

1. 1. β =	α
      	α + 1

      
      

   
   
   

   2. β =	α
      	α - 1

   
   
   

   3. α =	β
      	β – 1

   
   
   

   4. α =	β + 1
      	β

   
   
   

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   NA

   Correct Option: B

   NA

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