Analog Electronics
The extremely high input impedance of a MOSFET is primarily due to the

  negative gate-source voltage.
  depletion of electric current carriers.
  absence of its channel.
  extremely small leakage electric current of its gate capacitor.

ANSWER DOWNLOAD EXAMIANS APP

Analog Electronics
A Semiconductor has a

 Constant Temperature coefficient of resistance
None of these
 Positive Temperature coefficient of resistance
 Negative Temperature coefficient of resistance

ANSWER DOWNLOAD EXAMIANS APP