Analog Electronics
Darlington connection is achieved in 2 transistors by connecting

 both emitter.
 grounding both collector.
 both base.
 both collector.

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Analog Electronics
In all base driver amplifiers

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

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