Which of the following are triode constants?

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(D) triode is an electronic device with three electrodes: a cathode, an anode, and a control grid. The performance of a triode is characterized by thr

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All of the above

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(D) triode is an electronic device with three electrodes: a cathode, an anode, and a control grid. The performance of a triode is characterized by three fundamental constants:$1$. Plate resistance $(r_p)$: The ratio of change in plate voltage to the change in plate current at a constant grid voltage.$2$. Amplification factor $(\mu)$: The ratio of change in plate voltage to the change in grid voltage at a constant plate current.$3$. Mutual conductance $(g_m)$: The ratio of change in plate current to the change in grid voltage at a constant plate voltage.These three parameters are related by the equation $\mu = g_m 	imes r_p$. Therefore, all the listed options are triode constants.

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