121. In an FET—

1. 1. Both the junction are reverse biased

   
   
   

   2. One junction is reverse biased and the other forward biased

   
   
   

   3. One junction has reverse biased on both side of the junction

   
   
   

   4. One junction has reverse biased on side and forward bias on the other

   
   
   

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   In an FET the junction has reverse bias on both side of the junction.

   Correct Option: C

   In an FET the junction has reverse bias on both side of the junction.

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122. Best electronic device for fast switching is—

1. 1. MOSFET

   
   
   

   2. JEFT

   
   
   

   3. BJT

   
   
   

   4. Diode 1

   
   
   

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   MOSFET is fast switching device as its input impedance is very high resulting in negligible loading effect.

   Correct Option: A

   MOSFET is fast switching device as its input impedance is very high resulting in negligible loading effect.

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123. The p-channel JFET is complementary to the n-channel JFET and uses—

1. 1. Holes instead of electrons for majority carriers

   
   
   

   2. Electrons instead of holes for majority carriers

   
   
   

   3. Both electrons as well as holes for majority carriers

   
   
   

   4. Neither holes nor electrons for majority carriers

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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124. As compared to a bipolar transistor, a JFET is—

1. 1. Highly sensitive to changes in input voltage

   
   
   

   2. More sensitive to changes in input voltage

   
   
   

   3. Less sensitive to changes in input voltage

   
   
   

   4. Equally sensitive to changes in input voltage

   
   
   

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1. View Hint View Answer Discuss in Forum

   As compared to a bipolar junction transistor, JFET is highly sensitive to change in input voltage.

   Correct Option: A

   As compared to a bipolar junction transistor, JFET is highly sensitive to change in input voltage.

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125. The input gate current of an FET is—

1. 1. A few amperes

   
   
   

   2. A few milliamperes

   
   
   

   3. A few microamperes

   
   
   

   4. Negligible

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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