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Analog Electronics

Analog Electronics
An n- channel JFET has IDSS=2mA,and Vp=-4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=-2v is

0.5
0.75
1
0.25

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Analog Electronics
Which oscillators are easy to fabricate in a monolithic IC?

 Wien bridge oscillator.
 Crystal oscillator.
 Relaxation oscillator.
 Hartley oscillator.

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Analog Electronics
Early effect in BJT refers to

  base narrowing.
  avalanche breakdown.
  zener breakdown.
  thermal breakdown.

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Analog Electronics
The main factor which makes a MOSFET likely to breakdown during the normal handling

  high leakage current.
  both (A) and (C).
  high input resistance.
  very low gate capacitance.

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Analog Electronics
The current gain of a pnp transistor is

 the collector current divided by the emitter current.
 the ratio of collector current to emitter current.
 the negative of the npn current gain.
 near zero.

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Analog Electronics
Which of these is the best description of a zener diode?

  It is a constant electric current device.
  It is a constant voltage device.
  It is a rectifier diode.
  It works in the forward region.

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