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Analog Electronics

Analog Electronics
Silicon and Germanium are ________ elements.

 trivalant
 tetravalant
 hexavalant
 pentavalant

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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

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

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Analog Electronics
The trapped energy of an inductive load can be feed back to the input supply through a diode known as

 Powe diode.
 Zener diode.
 None of these.
  Feed back diode.

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Analog Electronics
When will be the P-N junction is formed ?

None of these
 In depletion region
 Two opposite doped materials
 In reverse biased region

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Analog Electronics
Energy gap of semiconductor is approx

 1 eV.
 > 8 eV .
 5 - 8 eV.
 0 eV.

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Analog Electronics
The leakage electric current ICBO flows in

  the emitter and base leads.
  the emitter, base and collector leads.
  the emitter and collector leads.
  the base and collector leads.

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