Analog Electronics
The silicon transistor are more widely used than germanium transistors because

  they have larger electric current carrying capacity.
  they have better ability to dissipate heat.
  they have smaller leakage current.
  they have smaller depletion layer.

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Analog Electronics
Why is silicon preferred than germanium ?

 Leakage current due to minority charge carrier is less in silicon
 All the above
 Current sensitivity of silicon with temperature is less
 Silicon has higher tolerance to temperature

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