Electrical conductivity of a semiconductor - Vidyadip

MCQ

Electrical conductivity of a semiconductor

A
Decreases with the rise in its temperature
✓
Increases with the rise in its temperature
C
Does not change with the rise in its temperature
D
First increases and then decreases with the rise in its temperature

✓

Answer

Correct option: B.

Increases with the rise in its temperature

b
(b)With temperature rise conductivity of semiconductors increases.

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

If the heart pushes $1 cc$ of blood in one second under pressure $20000 N/m^2$ the power of heart is.......$ W$

The temperature at which thermal electric power of a thermo couple becomes zero is called

Television signals broadcast from the moon can be received on the earth while the $TV$ broadcast from Delhi cannot be received at places about $100 \,km $ distant from Delhi. This is because

On moving a charge of $20$ coulombs by $2 \;cm , 2 \;J$ of work is done, then the potential difference between the points is (in $volt$)

For principal quantum number $n = 3$, the possible values of orbital quantum number $‘l’$ are

A car moving on a horizontal road may be thrown out of the road in taking a turn

A photon of energy $3.4 eV$ is incident on a metal having work function $2 eV$. The maximum $K.E$. of photo-electrons is equal to ........... $eV$

A car sounding a horn of frequency $ 1000 Hz$ passes an observer. The ratio of frequencies of the horn noted by the observer before and after passing of the car is $11 : 9$. If the speed of sound is v, the speed of the car is

A block of mass $10\, kg$ is placed on a rough horizontal surface having coefficient of friction $\,\mu = 0.5$. If a horizontal force of $100\, N$ is acting on it, then acceleration of the block will be ....... $m/s^2$

One $kg$ of water, at $20\,^oC$, is heated in an electric kettle whose heating element has a mean (temperature averaged) resistance of $20\, \Omega $. The rms voltage in the mains is $200\, V$. Ignoring heat loss from the kettle, time taken for water to evaporate fully, is close to.......... $\min$ [Specific heat of water $= 4200\, J/kg\, ^oC$), Latent heat of water $= 2260\, k\,J/kg$]