Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / fazley rafy
I've heard various definitions of passive and active device.They are:
1.Active devices can generate Power but passive devices can't.
Here can BJT alone be termed as a active device or BJT in the amplifier config. is termed as a active device?
2.If a device can control carrier by means of another electrical signal,it's calle active device.
3.One prof. of mine told me,on asking that the classification of diode being active and passive changes depending on whether we see it from Electronics Engg point of view or Electrical Engg point of view.He went to explain that in Electrical Engg.,diodes are mostly used as rectification devices and thus are passive
But from Electronics Engg. point of view,diodes are used as both oscillators and rectifiers and other wave shaping Page on Purposes it can be both active or passive
I see that both first and second statements mean the same.But the contentious device is the diode.
It acts as passive device from first definition,but by second definition it should be an active device as the voltage across it controls carrier flow.
Also some varieties like the Tunnel Diode and Gunn Diode are used as oscillator.So by both first and second definition,these are active device.
So what exactly all this active and passive stuff.I'm totally confused.
Can someone please clear all the fuss and PRECISELY DEFINE ACTIVE and PASSIVE nature.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what kind of negative feedback is present in a noninverting op-amp.
can i get comming traning school model question paper.
how to see the MAC address in your server's ARP table?
explain the trasistor sizing procedure for a four inputNOR and four input NAND Gate?
How can leveltrol be installed in steam drum for measuring the level of steam drum
I am perparing for DMRC Jr. Engineer Post. Please post me reference book Name At my Id laxman.negi@gmail.com
Explain we take the area of collector wide comparison to base and emitter. Why?
One FIU19(E) Flexbus LED is steadily on. What is the meaning? How can a Laptop PC be locally connected to a FIU19E? What is the maximum capacity of a FlexiHopper radio link operated by a FIU19(E), that is equipped with two 4x2M plug- in units? Which of the listed combination of indoor units support
Hey Frnds...... I want to do a course in Telecom Protocol Development in delhi or chandigarh plz tell me the best institutes providing the training as above.I am eagerly waiting for ur early replies............
What is the binary number system?
what are the jobs that SBI will provide for ECE students
What is the use of ranging?
What is cut-off frequency?
oracle 1st round What are the different types of joins? Explain normalization with examples. What cursor type do you use to retrieve multiple recordsets? Diffrence between a "where" clause and a "having" clause What is the difference between "procedure" and "function"? How will you copy the structure of a table without copying the data? How to find out the database name from SQL*PLUS command prompt? Tadeoffs with having indexes Talk about "Exception Handling" in PL/SQL? What is the diference between "NULL in C" and "NULL in Oracle?" What is Pro*C? What is OCI? Give some examples of Analytical functions. What is the difference between "translate" and "replace"? What is DYNAMIC SQL method 4? How to remove duplicate records from a table? What is the use of ANALYZing the tables? How to run SQL script from a Unix Shell? What is a "transaction"? Why are they necessary? Explain Normalizationa dn Denormalization with examples. When do you get contraint violtaion? What are the types of constraints? How to convert RAW datatype into TEXT? Difference - Primary Key and Aggregate Key How functional dependency is related to database table design? What is a "trigger"? Why can a "group by" or "order by" clause be expensive to process? What are "HINTS"? What is "index covering" of a query? What is a VIEW? How to get script for a view? What are the Large object types suported by Oracle? What is SQL*Loader? Difference between "VARCHAR" and "VARCHAR2" datatypes. What is the difference among "dropping a table", "truncating a table" and "deleting all records" from a table. Difference between "ORACLE" and "MICROSOFT ACCESS" databases. How to create a database link ? PL/SQL interview questions... Normalize many to many relationships Difference - Equijoin and union What is TEMP table space in Oracle, what is rollback segment How do we find row chaining? Pattern matching operators Features in oracle 9i and 10g Why truncating table is faster than delete copy commit syntax Convert Zulu time zone to US Eastern time zone Difference - union and union all Difference - Group by, Order by clause Which Ranking functions are available? Difference - Decode, NVL, NVL2 Tradeoffs of using partitioned tables How can we call stored procedure in SQL query What are the restrictions on calling PL/SQL from SQL Why EXISTS is preferable to distinct Give 2 examples of avoiding unnecessary parsing.
Define the limitations in the operation conditions of a p-n junction.
