MCQ
Correct relation for triode is
  • $\mu = {g_m} \times {r_p}$
  • B
    $\mu = \frac{{{g_m}}}{{{r_p}}}$
  • C
    $\mu = 2{g_m} \times {r_p}$
  • D
    None of these

Answer

Correct option: A.
$\mu = {g_m} \times {r_p}$
a
Electrostatic shielding theory shows that the electrostatic field in the vicinity of the cathode of a triode is proportional to $\left( E _{ c }+ E _{ b }\right) / \mu$, where $E _{ c }$ and $E _{ b }$ are the grid and anode voltages respectively.

Correct relation for triode is $\mu= g _{ m } \times r _{ p }$

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