Electronics - Voltage and Current - Discussion
Discussion Forum : Voltage and Current - General Questions (Q.No. 29)
29.
Which electronics material opposes the movement of free electrons?
Discussion:
25 comments Page 1 of 3.
Shwetha said:
1 decade ago
In insulators there is a large forbidden gap in between conduction band n vacancy band. So practically it s impossible for electron to jump from valence band to conduction band. So such materials cannot conduct so these are called insulators e.x diamond, glass wood.
Nandan said:
6 years ago
Conducted is not opposes the free elecrons and semiconductor is both acts as opposes the free elecrons are not but insulator is purely opposes the free elecrons.
Sreeyush Sudhakaran said:
1 decade ago
Consider current as peoples getting down from a bus.
Conductor - bus having 2 doors
Semiconductor- bus having only one door
Insulator- bus having no doors :)
Conductor - bus having 2 doors
Semiconductor- bus having only one door
Insulator- bus having no doors :)
Prabakaran said:
1 decade ago
Valence band:In the energy band electrons are in the outer most of the orbit.
Conduction band : in energy band solid which is partially occupies the electrons.
Conduction band : in energy band solid which is partially occupies the electrons.
Lakshmi said:
1 decade ago
Because in insulator the atoms are tightly bound with nucleus so their is no possibility of movement of charge carriers so their is no flow of current.
Anand said:
1 decade ago
Conductor- Allows the flow of Electron.
Insulator - Opposes the flow of electron.
Semiconductor - Sometimes allows or opposes the flow of electron.
Insulator - Opposes the flow of electron.
Semiconductor - Sometimes allows or opposes the flow of electron.
Venkatesh said:
1 decade ago
Conductor- Allows the flow of Electron.
Insulator - Opposes the flow of electron.
Semiconductor - Sometimes allows or opposes the flow of electron.
Insulator - Opposes the flow of electron.
Semiconductor - Sometimes allows or opposes the flow of electron.
Shubham mane said:
9 years ago
For insulator the depletion region width is high between the valance band and conduction band. So there is no flow of free electrons.
Kumaresan said:
1 decade ago
For insulator the depletion region width is hagh between the valance band and conduction band. so there is no flow of free electrons.
Vishal said:
7 years ago
All of the above should be the answer as there is no conductor/semiconductor that doesn't oppose electron in the practical scenario.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers