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Analog Electronics

Analog Electronics
For Germanium pn junction, the maximum value of barrier potential is

 0.7V
 0.3V
 1.6V
 1.5V

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Analog Electronics
If temperature increases then conductivity of a semiconductor is ...................

None of these
 Constant
 Decreases
 Increases

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Analog Electronics
When pn junction is reverse biased

 it offers a very high resistance
 the witdh of depletion layer increases
All of these
 a small current flows through it because of minority carriers

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Analog Electronics
In a RC phase shift oscillator, the minimum number of R-C networks to be connected in cascade will be

 four.
 three.
 two.
 one.

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Analog Electronics
Which types of device is the diode ?

 Conductor
 Insulator
None of these
 Semiconductor

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Analog Electronics
A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

25 Ω & 20 %
5 Ω & 16.7 %
5 Ω & 20 %
25 Ω & 16.7 %

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