Analog Electronics
Which of the following statements is false?

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

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Analog Electronics
A working diode must have

 High resistance when forward or reverse biased
 Low resistance when forward biased, while high resistance when reverse bias
 Low resistance when forward or reverse biased
 High resistance when forward biased, while low resistance when reverse bias

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Analog Electronics
Why is silicon preferred than germanium ?

 All the above
 Silicon has higher tolerance to temperature
 Current sensitivity of silicon with temperature is less
 Leakage current due to minority charge carrier is less in silicon

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