Analog Electronics
When testing an npn transistor using an ohmmeter, the collector-emitter resistance will be low when

 the emitter is positive in respect to the collector.
  the transistor is defective.
 the collector is positive in respect to the emitter.
 the transistor is normal.

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Analog Electronics
Which of the following statements is false?

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

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