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Analog Electronics

Analog Electronics
A semiconductor material is formed by

 Covalent bonds
 Metallic bonds
 Electrovalent bonds
None of these

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Analog Electronics
An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is

1/11KΩ
5KΩ
11KΩ
1/5KΩ

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Analog Electronics
When the Q point moves along the load line, VCE decreases when the collector current

 stays the same.
 decreases.
None of these
  increases.

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Analog Electronics
Which of the following is a semiconductors material ?

 All the above
 GaAs
 Ge
 Si

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

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

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Analog Electronics
A forward potential of 10 V is applied to a silicon diode. A resistance of 1KΩ is also in series with the diode. The electric current is

  9.3 mA.
  0.7 mA.
  10 mA.
  0.

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