Semiconductors

The output of the logic circuit shown in figure will be

The logic gate equivalent to given logic gate is

In the following combination of logic gates, the outputs (y,z) are respectively.

For an n-type semiconductor, the relation between the number density '$n_h$' and '$n_e$' is

A silicon crystal is doped with $5 \times 10^{17}\ \text{cm}^{-3}$ atoms of boron. The electron concentration $(n_e)$ at room temperature is $(n_i = 1.5 \times 10^{10}\ \text{cm}^{-3})$

Current through a reverse biased p-n junction, increases abruptly at

Identify the INCORRECT statement

Below we give four entries for the truth table of two point input OR gate. Which two are wrong? $\begin{array}{cccc} & A & B & Y\\ \text{i} & 1 & 0 & 1\\ \text{ii} & 1 & 1 & 0\\ \text{iii} & 0 & 0 & 1\\ \text{iv} & 0 &…

The color of light emitted by an LED is determined primarily by which of the following factors?

In a common emitter amplifier circuit using n-p-n transistor, the phase difference between the input and output voltages will be

The depletion region of a p-n junction is formed due to

The components which are used in regulated power supply as rectifier, filter and voltage regulator are