NEET UG PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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Application +4 | -1

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

View answer and explanation

Correct option: B

1000

kilo

ohms

static

Option A (100

kilo

ohms

static) is correct because the plate resistance is the inverse of the slope of the plate characteristic, and it's a static parameter.

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I = A{T^2}{e^{q/{V_L}}}

{V_L}

\sqrt{n}.

n

p - n\;

{10^{17}}\mathrm{c}{\mathrm{m}^{ - 3}}

P

{10^{16}}

\mathrm{c}{\mathrm{m}^{ - 3}}

N

kT =

{n_i} = 1.4 \times {10^{10}}

\mathrm{c}{\mathrm{m}^{ - 3}}