MCQ
In case of a semiconductor, which of the following statement is wrong
  • A
    Doping increases conductivity
  • B
    Temperature coefficient of resistance is negative
  • C
    Resisitivity is in between that of a conductor and insulator
  • At absolute zero temperature, it behaves like a conductor

Answer

Correct option: D.
At absolute zero temperature, it behaves like a conductor
At absolute zero temperature, semiconductor.

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 Milikan's oil drop experiment, a charged drop falls with terminal velocity $V$. If an electric field $E$ is applied in vertically upward direction then it starts moving in upward direction with terminal velocity $2 \mathrm{~V}$. If magnitude of electric field is decreased to $\frac{E}{2}$, then terminal velocity will become
Two equal masses $m_1$ and $m_2$ moving along the same straight line with velocities $+3 \mathrm{~m} / \mathrm{s}$ and $-5 \mathrm{~m} / \mathrm{s}$ respectively collide elastically. Their velocities after the collision will be respectively
If the maximum value of accelerating potential provided by a ratio frequency oscillator is $12\, {kV}$. The number of revolution made by a proton in a cyclotron to achieve one sixth of the speed of light is ....... .

$\left[{m}_{{p}}=1.67 \times 10^{-27} {kg}, {e}=1.6 \times 10^{-19} {C},\right.$ Speed of light $\left.=3 \times 10^{8} {m} / {s}\right]$

A particle moves in the $x y$-plane under the action of a force $F$ such that the components of its linear momentum $p$ at any time $t$ are $p_x=2 \cos t, p_y=2 \sin t$. The angle between $F$ and $p$ at time $t$ is
A particle of mass $\mathrm{m}$ at rest is acted upon by a force $F$ for a time $t$. Its Kinetic energy after an interval $t$ is
A car when passes through a convex bridge exerts a force on it which is equal to
A $500 kg$ crane takes a turn of radius $50 m$ with velocity of 36 $km / hr$. The centripetal force is
A small air bubble is at the inner surface of the bottom of a beaker filled with cold water. Now water of the beaker is heated. The size of bubble increases. The reason for this may be
The specific heat of a gas in an isothermal process is
A body of mass $m$ is thrown upwards at an angle $\theta$ with the horizontal with velocity $v$. While rising up the velocity of the mass after $t$ seconds will be