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In logarithmic or Antilogarithmic Amplifier using OPAMP (IC 741) sometimes we use a diode and sometimes we use a transistor..
Which one is mostly used??
Please explain..
compare electron current and hole current
Here Infinitus has compared the mass of a Hole which is actually nothing but the absence of an Electron. So if hole really has some mass then we can say that with the generation of an Electron Hole pair, mass of a semi-conductor should increase, because...
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