Analog Electronics
Why holes are not created in a metal ?

 Both 1 & 2
 The forbidden band is missing
 The conduction band and valance band are overlapped
None of these

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Analog Electronics
Which of the following statements is false?

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

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Analog Electronics
The arrowhead on the transistor symbol points in the direction of

  minority carrier flow in the emitter region.
  electron flow in the emitter region.
  majority carrier flow in the emitter region.
  conventional electric current flow in the emitter region.

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