Electronic Devices Question 198

Question: The slope of plate characteristic of a vacuum tube diode for certain operating point on the curve is $ {{10}^{-3}}\frac{mA}{V} $ . The plate resistance of the diode and its nature respectively

[MP PMT 1990]

Options:

A) 100 kilo-ohms static

B) 1000 kilo-ohms static

C) 1000 kilo-ohms dynamic

D) 100 kilo-ohms dynamic

Show Answer

Answer:

Correct Answer: B

Solution:

Plate resistance $ =\frac{1}{\text{slope}}=\frac{1}{{{10}^{-3}}\times {{10}^{-3}}}=10^{6}\Omega $ = 1000 kW (static).



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