The correct relation for a triode is:

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(A) In a triode valve,the three parameters are the amplification factor $(\mu)$,the mutual conductance $(g_m)$,and the plate resistance $(r_p)$.These

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$\mu = g_m 	imes r_p$

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(A) In a triode valve,the three parameters are the amplification factor $(\mu)$,the mutual conductance $(g_m)$,and the plate resistance $(r_p)$.These parameters are related by the fundamental equation: $\mu = g_m 	imes r_p$.Here,$g_m$ is defined as the change in plate current for a change in grid voltage at a constant plate voltage,and $r_p$ is the change in plate voltage for a change in plate current at a constant grid voltage.

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