MCQ
Avalanche breakdown is due to
- ✓Collision of minority charge carrier
- BIncrease in depletion layer thickness
- CDecrease in depletion layer thickness
- DNone of these
✓
Answer
Correct option: A.
Collision of minority charge carrier
a
(a)At high reverse voltage, the minority charge carriers, acquires very high velocities. These by collision break down the covalent bonds, generating more carriers. This mechanism is called Avalanche breakdown.
(a)At high reverse voltage, the minority charge carriers, acquires very high velocities. These by collision break down the covalent bonds, generating more carriers. This mechanism is called Avalanche breakdown.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A lens placed $10 \,cm$ away from a wall casts a sharp inverted image of a candle on it. It again casts a sharp image when the lens is moved $20 \,cm$ further away from the wall. Now. the candle and the lens are moved such that a sharp inverted image with unit magnification is formed on the wall. To achieve this configuration, the candle was moved
→The total energy radiated from a black body source is collected for one minute and is used to heat a quantity of water. The temperature of water is found to increase form ${20^o}C$ to ${20.5^o}C$. If the absolute temperature of the black body is doubled and the experiment is repeated with the same quantity of water at ${20^o}C$, the temperature of water will be....... $^oC$
→In the propagation of electromagnetic waves the angle between the direction of propagation and plane of polarisation is......$^o$
→A modern grand-prix racing car of mass $m$ is travelling on a flat track in a circular arc of radius $R$ with a speed $v$. If the coefficient of static friction between the tyres and the track is $\mu_{s},$ then the magnitude of negative lift $F_{L}$ acting downwards on the car is
→(Assume forces on the four tyres are identical and $g =$ acceleration due to gravity)
The charges on two plates of a $10\,\mu f$ capacitor are $5\,\mu C$ and $15\,\mu C$ then the potential difference across the capacitor plates is........$V$
→$1$ mole of rigid diatomic gas performs a work of $Q / 5$ when heat $Q$ is supplied to it. The molar heat capacity of the gas during this transformation is $\frac{ x R }{8},$ The value of $x$ is $\ldots \ldots \ldots .$ $[ K =$ universal gas constant $]$
→A spherical cavity of radius $r$ is curved out of a uniform solid sphere of radius $R$ as shown in the figure below. The distance of the centre of mass of the resulting body from that of the solid sphere is given by
→Two radioactive materials $A$ and $B$ have decay constants $25 \lambda$ and $16 \lambda$ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of $B$ to that of $A$ will be "$e$" after a time $\frac{1}{a \lambda}$. The value of $a$ is $......$
→A solid sphere, a hollow sphere and and a ring are released from top of an inclined plane (frictionless) so that they slid down the plane. Then maximum acceleration down the plane is for (no rolling)
A man on a rectilinearly moving cart, facing the direction of motion, throws a ball straight up with respect to himself