The dynamic plate resistance of a triode...

The dynamic plate resistance of a triode valve is `10 kOmega`. Find the change in the plate current if the plate voltage is changed from `200 V` to `220 V`.

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Given: Dynamic Plate Resistance
` r_p = 10K Omega = (10^4) Omega `
` omega IV_p = ? `
` omega V_(p) = 220 - 200 = 20 V `
` omegaI_p = (omegaV_(p)/rp) and V_0 = const. `
` = 20/(10^4) = 0.002A = 2mA ` .

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