Question
Write two points of difference between n-type and p-type semiconductors.

Answer

S.no n- type semiconductor p- type semiconductor
1 Pentavalent impurity is added. Trivalent impurity is added.
2 Electrons are the majority charge carrier/$(?_? >> ?_h)$ Holes are the majority charge carriers/$(?_h >> ?_?).$
3 New energy level formed near conduction band. New energy level formed near valence band.

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

An iron needle is attracted to the ends of a bar magnet but not to the middle region of the magnet. Is the material making up the ends of a bar magnet different from that of the middle region?
Net capacitance of three identical capacitors in series is $1\mu\text{F}.$ What will be their net capacitance if connected in parallel?
Find the ratio of energy stored in the two configurations if they are both connected to the same source.
Consider a 10cm long portion of a straight wire carrying a current of 10A placed in a magnetic field of 0.1T making an angle of 53° with the wire. What magnetic force does the wire experience?
Give the mass number and atomic number of elements on the right hand side of the decay process.
$^{220}_{86}\text{Ru}\ \ \rightarrow\ \ \text{Po}\ \ +\ \ \text{He}$
An electronically driven loudspeaker is placed near the open end of a resonance column apparatus. The length of air column in the tube is 80cm. The frequency of the loudspeaker can be varied between 20Hz-2kHz. Find the frequencies at which the column will resonate. Speed of sound in air = 320m/s.
In Ampere's $\oint\overrightarrow{\text{B}}.\text{d}\overrightarrow{\text{l}}=\mu_0\text{i},$ the current outside the curve is not included on the right hand side. Does it mean that the magnetic field B calculated by using Ampere's law, gives the contribution of only the currents crossing the area bounded by the curve?
Electrons are emitted from the surface when green light is incident on it, but no electrons are ejected when yellow light is incident on it. Do you expect electrons to be ejected when surface is exposed to (i) Red light and (ii) Blue light?
The electric foree between two electric charges in a medium is F . The distance between them is $d$. At what distance were they placed from each other
so that the electric foree becomes (i) 3 F (ii) $\frac{ F }{4}$ ?
Draw a circuit diagram of n-p-n transistor amplifier in CE configuration. Under what condition does the transistor act as an amplifier?
Calculate the energy released in MeV in the following nuclear reaction:
$^{238}_{92}\text{U}\rightarrow^{234}_{90}\text{Th} + ^{4}_{2}\text{He} + \text{Q}$
$\bigg[\text{Mass of } ^{238}_{92}\text{U} = 238.05079\text{ u}$
$\text{Mass of } ^{234}_{90}\text{Th} = 234.043630\text{ u}$
$\text{Mass of } ^{4}_{2}\text{He} = 4.002600\text{ u}$
$1\text{u} =193.5\text{MeV}/\text{c}^{2}\bigg]$