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Analog Electronics

Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 doping
 intrinsic
None of these
 extrinsic

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Analog Electronics
The positive part of the output signal in a transistor circuit starts clipping, if Q point of the circuit moves

  none of these.
  toward the center of the load line.
  toward the cutoff point.
  toward the saturation point.

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Analog Electronics
Which of the following does not obey the Ohm's law?

 Semiconductor
 Resistor
 Bilateral device
None of these

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Analog Electronics
Germanium has

 metallic bond.
 covalent bond.
 molecular bond.
 ionic bond.

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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

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

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Analog Electronics
Generally, the gain of a transistor amplifier falls at high frequencies due to the

Coupling capacitor at the input
Internal Capacitance of the device
Coupling capacitor at the output
Skin effect

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