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Calculate the amplification factor of a triode valve which has plate resistance of `2 kOmega` and transconductance of 2 millimho`.

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Given ` r_p = 2 k Omega `
` = 2 xx (10^3) W, `
transconductance ` g_m = 2 mili mho `
` = 2 xx (10^-3) ohm `
amplification factor ` mu = r_p xx g_m `
` = 2 xx (10^3) xx 2 xx (10^-3) = 4 `
i.e. Amplification factor is 4.
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