Consider a $p-n$ junction as a capacitor, formed with $p$ and $n$-materials acting as thin metal electrodes…

Consider a $p-n$ junction as a capacitor, formed with $p$ and $n$-materials acting as thin metal electrodes and depletion layer width acting as separation between them. Basing on this, assume that a $n-p-n$ transistor is working as an amplifier in CE configuration. If $C_1$ and $C_2$ are the base-emitter and collector-emitter junction capacitances, then :
  1. $C_1>C_2$
  2. $C_1 < C_2$
  3. $C_1=C_2$
  4. $C_1=C_2=0$

Solution

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Asked in: AP EAMCET 2006

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