# A parallel plate capacitor is made of two square plats of side ‘a’, separated by a distance d (d<<a).  The lower triangular portion is filled with a dielectric of dielectric constant K, as show in the figure. Capacitance of this capacitor is: a.   b. ln K c.   d.

## Question ID - 50049 :- A parallel plate capacitor is made of two square plats of side ‘a’, separated by a distance d (d<<a).  The lower triangular portion is filled with a dielectric of dielectric constant K, as show in the figure. Capacitance of this capacitor is: a.   b. ln K c.   d.

3537

dy=

=

=

=

C= 0a.

=

= ln

= ln =

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Mobility of electrons in a semiconductor in defined as the ratio of their drift velocity of the applied electric field.  If, for an n-type semiconductor, the density of electrons is 1019m−3 and their mobility is 1.6m2(v.s) then the resistivity of the semiconductor(since it is an n-type semiconductor contribution of holes is ignored) is close to:

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