Which of the following statements is not true - Vidyadip

MCQ

Which of the following statements is not true

A
The resistance of intrinsic semiconductors decrease with increase of temperature
B
Doping pure $Si$ with trivalent impurities give $P-$type semiconductors
✓
The majority carriers in $ N-$type semiconductors are holes
D
A $PN-$ junction can act as a semiconductor diode

✓

Answer

Correct option: C.

The majority carriers in $ N-$type semiconductors are holes

c
(c)In $N-$ type semiconductor majority charge carriers are electrons.

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

More "M.C.Q (1 Marks)" from 14. Semicondutor electronics→14. Semicondutor electronics — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Energy of the electron in $n^{th}$ orbit of hydrogen atom is given by ${E_n} = - \frac{{13.6}}{{{n^2}}}eV$. The amount of energy needed to transfer electron from first orbit to third orbit is........$eV$

In the hysteresis cycle, the value of H needed to make the intensity of magnetisation zero is called

If in the experiment of Wheatstone’s bridge, the positions of cells and galvanometer are interchanged, then balance point will:

Dispersion of light is due to

An electron falls through a small distance in a uniform electric field of magnitude $2 \times {10^4}N{C^{ - 1}}$. The direction of the field is reversed keeping the magnitude unchanged and a proton falls through the same distance. The time of fall will be

A charge $Q\;\mu C$ is placed at the centre of a cube, the flux coming out from any surfaces will be

When $100\, volts$ $dc$ is supplied across a solenoid, a current of $1.0$ amperes flows in it. When $100 \,volts$ $ac$ is applied across the same coil, the current drops to $0.5$ ampere. If the frequency of ac source is $50 \,Hz$, then the impedance and inductance of the solenoid are

Find the current in the loop.

Comparing real and virtual images, we may say that:

The electrostatic force of interaction between an uniformly charged rod having total charge $Q$ and length $L$ and a point charge $q$ as shown in figure is