Analog Electronics
For audio frequency applications, the popular oscillator used is

 Wien bridge oscillator
 Hartley oscillator
 Crystal oscillator
 Phase shift oscillator

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Analog Electronics
A Semiconductor has a

 Positive Temperature coefficient of resistance
 Negative Temperature coefficient of resistance
 Constant Temperature coefficient of resistance
None of these

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Analog Electronics
Which of the following statements is false?

All of these
A push pull output transformer has a centre-tapped primary
Push pull signals are equal and opposite in phase
Class AB operation cannot be used for a push pull audio power output phase

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