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
If we use heat sinkble rechem make HT jointing kit for XLPE HT (6KV)termination at HT side of transformenr, Is it required to fill the HT termination with Epoxy compoud?
Explain what are the basic logic elements?
how can i prepare for the apgenco can u send old qps to jeedipally@gmail.com
Explain why an ordinary transistor is called bipolar.
hiiiii sir ..tell me the written test pattern for symphony teleca.....pleaseee
What is multiplexing?
How the trx is assigned to e1 channel?
Which register which contains the instruction that is to be executed?
What is dma controller?
hi iam having b tech aggregate of 60%and 15 back locks cleared in course time and gre score of 1000 can i get visa
Define modulation.
radar
Explain the steps involved in demodulating a signal.
A channel has a bit rate of 4kbps and a propagation delay of 20msec. For what range of frame sizes does stop-and-wait give an efficiency of at least 50%
Explain how to convert a binary number into bcd number directly and vice-versa, without converting it into any other number system?
