Electrical Engineering - Voltage, Current and Resistance - Discussion

Discussion :: Voltage, Current and Resistance - General Questions (Q.No.1)

1. 

Materials with lots of free electrons are called

[A]. conductors
[B]. insulators
[C]. semiconductors
[D]. filters

Answer: Option A

Explanation:

No answer description available for this question.

Cheeku said: (Jan 30, 2011)  
Conductors have more free electrons that are not aligned, once the voltage is applied they start conducting, but semiconductors don conducts til the threshold voltage is overcome. So conductors have more free electrons than others.

Anand said: (Jul 21, 2011)  
Thanks cheeku

Surajit said: (Apr 6, 2012)  
Every conductor has many free electrons for which they can conduct electricity.

Afzal said: (Apr 16, 2012)  
In an atom the free electrons are present at outermost orbit.It can easily flow from one atom to another by applying voltage. So it is called as conductor.

Rachit.Shah said: (Jun 23, 2012)  
Conductor has more free electrons and the energy gap between conduction and valence band is less so free electron easily goes to conductance band so.

Deepak said: (Jul 25, 2012)  
Conductor means, it is a substance which easily flow of electricity.

Narendra said: (Aug 26, 2012)  
Conductor is a substance,which conducts electricity due to flow of maximum electrons.

Narendra Kuldeep said: (Oct 5, 2012)  
Conductor may be easily generate electricity so more free electrons in conductor is called conductor.

Antony said: (Feb 19, 2013)  
Conductor is a material that allow free flow of current.

Navya.Suryadevara said: (Mar 24, 2013)  
Conductor has a property that flow of electrons when voltage is applied to it.

Rutesh said: (Jun 12, 2013)  
Basic think finally. Currents means flow of electrons.

As so many electrons mean more current flow. And conductor having more electrons compared to semiconductor and non conductor.

Dipak Kumar Biswas said: (Jun 15, 2013)  
Currents means flow of electrons in a proper direction. Electrons are basically outermost electrons.

Saurabh said: (Aug 10, 2013)  
An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat.

Darshit Pandya said: (Sep 7, 2013)  
Conductor have no forbidden gap between conduction band valance band.

Kavi said: (Oct 20, 2013)  
Due to the presence of electrons only substance will conducts. So, conductors have lots of charges.

Sai Kumar said: (Jan 24, 2014)  
Which having number of electrons is called conductor. Examples: copper, alluminium, water, iron etc.

Prince said: (Mar 3, 2014)  
Basically current is rate of flow of charges or electrons and conductors are those in which current flow so conductor is a material with lot of free electrons.

Prashant Singh said: (Mar 25, 2014)  
More free of electrons means means more flow and flow occurs at conductors only while partial in semi conductors.

Arif said: (Jun 12, 2014)  
Though conductors have low resistance so they can conduct electricity we can say that conductors have free electrons.

P. Paul Ebenezer said: (Jul 19, 2014)  
The material which has more than 4 valence electron is called a conductor.

Vaitheeswaran said: (Aug 22, 2014)  
A good conductor should have the more electrons to transmit a current.

Srithar Eee said: (Sep 8, 2014)  
In this my point view the conductor means free of electrons to move one place to another place is know as conductors.

Sharun said: (Nov 14, 2014)  
What is semiconductors, insulators, filters?

Vishal Nakrani. said: (Jan 9, 2015)  
Semi conductor is the conductor which isn't easily passed electron.

And insulator is never passed electron.

Bishal Seth said: (Jan 30, 2015)  
Which is easily passes flow of electron is called conductor?

Karan said: (Feb 9, 2015)  
What is filter?

Siva said: (Mar 11, 2015)  
Conductor has only one free electron at the outermost orbit.

Eg: Copper, gold, silver.

Pampa said: (May 13, 2015)  
Hi @Srithar.

Free electrons are not conductor, the substance which carries the electrons is conductor.

Satish Petkar said: (Jul 7, 2015)  
Conductor has free electron unless voltage is high n less current till free electron observed but work done will be done by threshold voltage.

Manzoor Ali said: (Dec 8, 2015)  
Conductor is a substances which have large no.of free electron.

Arbaj said: (Jul 23, 2016)  
Thanks for all your explanation.

Ratna said: (May 1, 2017)  
Thanks for all your explanations.

Ratna said: (May 1, 2017)  
Nice explanation, thanks.

Ratna said: (May 1, 2017)  
The Conductor has free electron unless a voltage is high and less current till free electron observed but work done will be done by the threshold voltage.

Sagar said: (Mar 18, 2018)  
Free electrons and the energy gap between conduction and valence band is less so free electron easily goes to conductance band. And free electron means they are ready for action so potential energy applied they start conducting.

Praveen said: (Oct 13, 2018)  
Conductivity of the atom depends on the number of electrons that are in the valence shell. When an atom has only one electron in valence shell, it is almost a perfect conductor. When an atom has eight valence electrons the valence shell is said to be complete and the atom is an insulator.

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