Physics | Semiconductors

Practice Physics | Semiconductors on Bissoy — browse topics below and open any question.

Digital Electronics and Logic Gates Energy Levels in a Crystalline Solid Insulators Metals Semiconductor Diode Semiconductor Materials The Electrical Properties of Solids The Junction Rectifier The Light-Emitting Diode (LED) The p-n Junction The Transistor

Questions

Which of the following is true about the resistance of a Zener diode?

ক

It has an incremental resistance

খ

It has dynamic resistance

গ

The value of the resistance is the inverse of the slope of the i-v characteristics of the Zener diode

ঘ

All of the mentioned

Which of the following is not an alloy?

ক

Duralumin

খ

Bismuth

গ

Magnalium

ঘ

Alnico

Choose the incorrect statement.

ক

SMPS is less sensitive to input voltage variations

খ

SMPS is smaller as compared to rectifiers

গ

SMPS has low input ripple

ঘ

SMPS is a source of radio interference

A zener diode is used for

ক

Rectification of current

খ

Blocking the current flow in reverse direction

গ

Voltage regulation

ঘ

All of the above

An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is

ক

NOR

খ

NAND

গ

OR

ঘ

NOT

ঙ

None of the above

Which of the following statements is not true

ক

A structured chart is a sequential representation of program design

খ

the Real-Time system is a particular case of a on-line-system

গ

Batch totals are not incorporated while designing real-time applications

ঘ

4GLs are used for application proto typing

ঙ

None of the above