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  • The figure represents variation of triode parameter <img alt="\mathrm{\left(\mu \text { or } r_p \text { or } g_m\right)}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B%5Cleft%2

The figure represents variation of triode parameter \mathrm{\left(\mu \text { or } r_p \text { or } g_m\right)} with the plate current. The correct variation of \mathrm{\mu } and \mathrm{r_{p}} are given, respectively by the curves

Option: 1

\mathrm{A\ and\ B}


Option: 2

\mathrm{B\ and\ C}


Option: 3

\mathrm{A\ and\ C}


Option: 4

None of the above


Answers (1)

best_answer

\mathrm{r_{p}} varies with \mathrm{i_{p}} according to relation \mathrm{r_{p}} \mathrm{\alpha } \mathrm{r_{p}^{-1/3}} ,i. e., when \mathrm{i_{p}} increases, \mathrm{r_{p}} decreases, hence graph \mathrm{C} represents the variation of \mathrm{r_{p}} 
\mathrm{\mu } doesn’t depend upon \mathrm{i_{p}}, hence graph \mathrm{A} is correct

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Pankaj

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