Analog Electronics
Secondary breakdown occures in

  BJT but not is MOSFET.
 Both BJT and MOSFET.
 MOSFET but not in BJT.
 None of these.

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Analog Electronics
Pinch-off voltage in a JFET is

 the drain voltage that gives zero drain current.
 the gate to source voltage that gives unity drain current.
 the drain voltage that gives infinite drain current.
 the gate to source voltage that gives zero drain current.

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