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Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsPN junctionMedium2 minPYQ_2014

PhysicsMediumsingle choice

When plate voltage in diode valve is increased from 100 V to 150 V. Then, plate current increases from 7.5 mA to 12 mA, then dynamic plate resistance will be

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Answer:

Solution:

$Plate resistance = \frac{Δ V _{P_{2}} - Δ V _{P_{1}}}{Δ j _{P_{2}} - Δ j _{R}} = \frac{150 - 100}{( 12 - 7.5 ) \times 1 0 ^{- 3}} = \frac{50 \times 1 0 ^{3}}{4.5}$ $= 11.1 k Ω$

Stream:JIPMERSubject:PhysicsTopic:SemiconductorsSubtopic:PN junction

⏱ 2mℹ️ Source: PYQ_2014

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