Analog Electronics
In all base driver amplifiers

ac emitter voltage is 180° out of phase with ac base voltage
ac collector 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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Analog Electronics
Why is silicon preferred than germanium ?

 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
 All the above

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