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| Contd... |
| In case of depletion, there in no inversion layer charge, so Qi =0, i.e. gate voltage becomes |
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| but in case of inversion, the gate voltage will be given by : |
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| The second term in second equality of last expression states our basic assumption, namely that any change in gate voltage beyond the threshold requires a change in inversion layer charge. Also from the same expression, we obtain threshold voltage as : |
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