76. At present, the state of the art devices are available as under— MOSFET BJT
    

1. 1. 1200 V, 800 A 500 V, 140 A
      

   
   
   

   2. 500V, 140 A 1200 V, 800 A
      

   
   
   

   3. 800 V, 1000 A 1000 V, 1200 A
      

   
   
   

   4. 200 V, 140 A 1500 V, 800 A

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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77. A single-phase voltage Source square-wave inverter feeds pure Inductive load. The wave form of the load current will be—
    

1. 1. Sinusoidal
      

   
   
   

   2. Rectangular
      

   
   
   

   3. Trapezoidal
      

   
   
   

   4. Triangular

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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78. An MCT has three terminals called—
    

1. 1. Collector, emitter and gate
      

   
   
   

   2. Anode, cathode and gate
      

   
   
   

   3. Drain, source and base
      

   
   
   

   4. Drain, source and gate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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79. An IGBT has three terminals called—
    

1. 1. Collector, emitter and base
      

   
   
   

   2. Drain, source and base
      

   
   
   

   3. Drain, source and gate
      

   
   
   

   4. Drain, source and gate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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80. For the switching waveform shown in fig. for a power transistor the peak instantaneous power loss in watts is—
    
    
    
    

1. 1. 250
      

   
   
   

   2. 500
      

   
   
   

   3. 166·67
      

   
   
   

   4. 333·33

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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