General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 13)
13.
Metals are good conductors of electricity because
Discussion:
22 comments Page 1 of 3.
Anuradha Kulkarni said:
1 decade ago
Conductors have free electrons in valence band. There is no forbidden energy gap between valence band and conduction band. Thus the electrons can readily jump from valence band to conduction band. Thus motion of electrons implies flow of current and hence metals are good conductors.
Madhumitha said:
9 years ago
Free electrons are the main reason for current conduction. The atoms present in the metal gets ionized with the release of free electrons. But in the case of an insulator, all electrons are tightly bound to the nucleus of the atom. Hence there are no free electrons to carry current.
Priyanka Boora said:
1 decade ago
Electrons when move from there place they create a hole on there place and then next electron come to in this hole to fill up it and create a new hole on there place this process is continue and so electron move thus current start flow.
Payal said:
1 decade ago
Metals are the good conductor of electricity because they contain free electrons. These free electrons can move easily in the the lattice of metal & carry current along with them. SILVER is the best conductor of electricity.
Afari said:
1 decade ago
Conductivity of electricity depends on the availability of free and mobile electrons. Metals find it easier to donate electrons rather than accepting electrons in order to achieve their duet or octet shell.
Chandu rani said:
10 years ago
If atoms are tightly packed and no free electrons can it act as conductor @Abdul, no because basic thing need is charge carriers to carry charge, either free electrons or ions in electrolytes.
Gajendra singh said:
1 decade ago
They have free electrons which are always moved and due to these electrons electricity can be carried from one place to another thats why metals are good conductor of electricity.
Abdul Haleem said:
1 decade ago
Can anyone tell me that why B option is wrong? as, lightly packed atoms offer less resistance and conversely good conductor. Hence both A and B are correct.
Silas said:
1 decade ago
The presence of free electrons in metal make them be good conductor of electricity because current electricity itself is the rate of flow of electrons.
Nishu tyagi said:
1 decade ago
It is becuse when metals have free electrons then metal lose electrons and form positive ions. Ions are responsible for electrical conductivity.
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