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Electronics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsElectronics1 Mark
MCQ
The variation of anode current in a triode corresponding to a change in grid potential at three different values of the plate potential is shown in the diagram. The mutual conductance of the triode isImage
  • ✓
    $2.5 m$ mho
  • B
    $5_8(0 \% \vec{m})$ mho
  • C
    $7.5 m$ mho
  • D
    $10.0 m$ mho
✓

Answer

Correct option: A.
$2.5 m$ mho
$g_m=\frac{\Delta i_p}{\Delta V_g}=\frac{(20-15) \times 10^{-3}}{(4-2)}=2.5$ millimho

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