MCQ
Serious draw back of the semiconductor device is
  • They cannot be used with high voltage
  • B
    They pollute the environment
  • C
    They are costly
  • D
    They do not last for long time

Answer

Correct option: A.
They cannot be used with high voltage
a
(a) Most semiconductors works in voltage range of $0-15 \mathrm{V}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for each position, the screen is adjusted to get a clear image of the object. A graph between the object distance $u$ and the image distance $v$, from the lens, is plotted using the same scale for the two axes. A straight line passing through the origin and making an angle of $45 ^o $ with the $x-$axis meets the experimental curve at $P$. The coordinates of $P$ will be
In the Millikan's experiment, the distance between two horizontal plates is 2.5 cm and the potential difference applied is 250 V. The electric field between the plates will be
The ratio of longest wavelength and the shortest wavelength observed in the five spectral series of emission spectrum of hydrogen is
A vertical rod of length $l$ is moved with constant velocity $v$ towards east if vertical  component of earth's magnetic field is $B$ and angle of dip is $\theta$ then induced $emf$ in rod
The Einstein’s photo$-$electric equation is based upon the conservation of:
A long, straight wire of radius R carries a current distributed uniformly over its cross section. T he magnitude of the magnetic field is:
Because of tilting which waves finally disappear
Two point charges of $20\,\mu \,C$ and $80\,\mu \,C$ are $10\,cm$ apart. Where will the electric field strength be zero on the line joining the charges from $20\,\mu \,C$ charge......$m$
which of the Following have output $1$?
In the meter bridge shown, the resistance $X$ has a negative temperature coefficient of resistance. Neglecting the variation in other resistors, when current is passed for some time, in the cirucit, balance point should shift towards.