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Home » (a) Name the particles which are responsible for the flow of current in a metallic wire. (b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part (a). (c) What is the cause of resistance offered by the metallic wire in the flow of current through it?
(a) Name the particles which are responsible for the flow of current in a metallic wire.
(b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part (a).
(c) What is the cause of resistance offered by the metallic wire in the flow of current through it?
Class 10 | Current Energy | ICSE | Physics | Selina
(a) Name the particles which are responsible for the flow of current in a metallic wire.
(b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part (a).
(c) What is the cause of resistance offered by the metallic wire in the flow of current through it?

(a) In a metallic wire, free electrons are the particles responsible for current flow.

(b) In metals, free electrons are the moving charges that cause electricity to conduct. If ‘n’ electrons pass through a metallic conductor in time ‘t,’ the total charge that has flown is equal to

 

Q (charge) = n e  (charge on an electron)

 

(c) A metal is made up of free electrons and positively charged ions that are fixed.

 

An electric current flows when electrons pass through a conductor, such as a metal wire. Moving electrons in the metal might clash with ions. As a result, the current is made more difficult to flow, resulting in resistance.

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