EASY
Earn 100
Write a distinguishing features between conductors, semiconductors and insulators on the basis of energy gap and Conductivity.
Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
EASY
State anyone difference between the energy band diagram of conductors and that of insulators.
EASY
The bonding is germanium crystal (semiconductor) is
EASY
The chromium ions doped in the ruby rod:
EASY
Which of the energy band diagrams shown in the figure corresponds to that of a semiconductor?
EASY
Define semiconductor. Explain different types of semiconductor.
EASY
State the conditions required to achieve laser action.
EASY
What is the value of energy gap for metals?
EASY
The band gaps of an insulator, conductor and semiconductor are respectively and The relationship between them is given as _____.
EASY
Consider a situation in which reverse biased current of a particular junction increases when it is exposed to a light of wavelength During this process, enhancement in carrier concentration takes place due to generation of hole-electron pairs. The value of band gap is nearly.
EASY
What will be the effect of increasing the temperature on the conductivity of pure semiconductor?
EASY
Choose the correct statement. In conductors
MEDIUM
What is NAND gate. Draw its symbol. Write truth table and draw its output single in wave form.
EASY
Draw separate energy band diagrams for conductors, semi-conductors and insulators and label each of them.
HARD
What are logic gates? Write symbols and truth table for OR, AND, NOT and NAND gates.
EASY
The scientific principle involved in 'Laser' is____
EASY
The band gap in and in respectively is
EASY
A positive hole in a semiconductor is
