Analog Electronics
A pn junction/Diode is a/an

 Unidirectional Component
 Bidirectional component
 Linear component
None of these

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Analog Electronics
In all base driver amplifiers

ac collector voltage is in phase with ac base voltage
None of these
ac collector voltage is 180° out of phase with ac base voltage
ac emitter voltage is 180° out of phase with ac base voltage

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