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Analog Electronics

Analog Electronics
A diode (P-N junction) has two terminals. The P-terminal is known as

 Cathode
 None of these
 Either anode or cathode
 Anode

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Analog Electronics
The emitter of the transistor is generally doped the heaviest because it

  has to dissipate maximum power.
  has to supply the charge carriers.
  must possess low resistance.
  is the first region of transistor.

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Analog Electronics
Class B amplifier is biased

 nearly twice cut-off.
None of these
 just at cut-off.
 at midpoint of load line.

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

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

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Analog Electronics
A JFET has disadvantage of

  possessing positive temperature coefficient.
  being noisy.
  having small gain-bandwidth product.
  having low input impedance.

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Analog Electronics
A 741-type OP-amp has a gain-bandwidth product of 1MHz.A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of

1000/17 KHz
1000/7.07 KHz
50 KHz
100 KHz

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