Department of Pre-University Education, Karnataka course PUC Karnataka Science Class 12
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The Dynamic Plate Resistance of a Triode Value is 10 Kω. Find the Change in the Plate Current If the Plate Voltage is Changed from 200 V to 220 V. - Physics

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Question

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

Solution

Given:-

Plate resistance,

`r_p=10kOmega=10^4Omega`

Change in plate voltage,

`deltaV_p=220-200=20V`

Plate resistance at constant grid voltage is given as:-

\[r_P    = \left(\frac{\delta V_P}{\delta I_P}\right)_{V_G = Constant} \]

\[ \Rightarrow \delta I_P    =   \frac{\delta V_P}{r_P}\]

\[\delta I_P    = \frac{\delta V_p}{r_P}\]

\[\delta I_P    = \frac{20}{{10}^4} = 0 . 002  A   =   2\text{ mA}\]

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Solution The Dynamic Plate Resistance of a Triode Value is 10 Kω. Find the Change in the Plate Current If the Plate Voltage is Changed from 200 V to 220 V. Concept: Semiconductor Diode.
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