Rajasthan Board-2018

Write value of output $\mathrm{Y}$ in diagram.

Select acceptor type impurity among the following:

arsenic$\left(\mathrm{As}\right)$, Antimony$\left(\mathrm{Sb}\right)$, gallium$\left(\mathrm{Ga}\right)$ and phosphorous$\left(\mathrm{P}\right)$.

Draw symbol of Zener diode.

Describe the experimental set up for obtaining output characteristic curve of a $\mathrm{PNP}$ transistor in common emitter configuration with suitable circuit diagram. Also draw the curve obtained.

Select possible value of common base current amplification factor $\mathrm{\alpha }$ of a transistor among the following.

$0.9,9,19,49 \mathrm{and} 99$

What is intrinsic semiconductor and extrinsic semiconductor? Write an example of each semiconductor.

What is $\mathrm{P}-\mathrm{N}$ junction diode? Draw a circuit diagram of the zener diode as a voltage regulator (voltage stabilizer). Write its working also.

Define Modulation.

What is nanotechnology?