Which of the following does not vary with pla | vedclass

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(C) In a vacuum triode,the amplification factor $\mu$ is defined as the ratio of the change in plate voltage to the change in grid voltage for a const

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$\mu$

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(C) In a vacuum triode,the amplification factor $\mu$ is defined as the ratio of the change in plate voltage to the change in grid voltage for a constant plate current: $\mu = -\left( \frac{\Delta V_p}{\Delta V_g} ight)_{I_p = 	ext{constant}}$.This parameter $\mu$ is primarily determined by the physical geometry of the triode (the spacing between the cathode,grid,and plate).While the transconductance $g_m$ and the plate resistance $R_p$ are dependent on the operating point (plate voltage and grid voltage),the amplification factor $\mu$ remains approximately constant over a wide range of operating conditions.Therefore,$\mu$ does not vary significantly with plate or grid voltages.

Which of the following does not vary with plate or grid voltages in a vacuum triode?

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