76. Reverse saturation current in a pn-junction diode—

1. 1. Increases with increasing reverse voltage

   
   
   

   2. Decreases with increasing reverse voltage

   
   
   

   3. Independent from the reverse voltage

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Reverse saturation current in a pn-junction diode is independent from the reverse voltage.

   Correct Option: C

   Reverse saturation current in a pn-junction diode is independent from the reverse voltage.

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77. Drift current in a pn-junction is influenced by—

1. 1. Applied voltage

   
   
   

   2. Concentration gradient

   
   
   

   3. Concentration

   
   
   

   4. All of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Drift current in a pn-junction diode is influenced by a applied voltage.

   Correct Option: A

   Drift current in a pn-junction diode is influenced by a applied voltage.

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78. The bulk resistance of a diode is—

1. 1. The resistance of junction only

   
   
   

   2. The resistance of p material only

   
   
   

   3. The resistance of n material only

   
   
   

   4. The resistance of p and n material only

   
   
   

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1. View Hint View Answer Discuss in Forum

   The bulk resistance of a diode is resistance of p and n material both i.e.
   R_bulk = R_p + R_n

   Correct Option: D

   The bulk resistance of a diode is resistance of p and n material both i.e.
   R_bulk = R_p + R_n

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79. The total current density of electrons is expressed as—

1. 1. Jn = qnµnE + qDn	dn
      	dx

   
   
   

   2. Jn = qnµnE - qDn	dn
      	dx

   
   
   

   3. Jn = qnµnE - A qDn	dn
      	dx

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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80. The volt equivalent of temperature is given by—

1. 1. q

      kT

   
   
   

   2. qkT

   
   
   

   3. kT

      q

   
   
   

   4. kT

   
   
   

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1. View Hint View Answer Discuss in Forum

   The volt equivalent of temperature is given by
   

   
   

   VT=	kT	26 mV=	T
   	q		11.600

   Correct Option: C

   The volt equivalent of temperature is given by
   

   
   

   VT=	kT	26 mV=	T
   	q		11.600

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