Movement of charge, Physics

Assignment Help:

MOVEMENT OF CHARGE:

Although electric current is referred to as the flow of electrons through a conductor, it should be noted that more exactly, any movement of electric charge constitutes an electric current. Thus, passage of electricity may occur through a:

• conductor such as metal, due to the movement of the loosely held outer electrons of the atoms.
• vacuum or gas, due to the movement of electrons.
• gas, due to the movement of the ionised gas molecules.
• liquid, due to the ionisation of certain molecules, particularly those of acids and salts in solution (e.g. Electrolytes).

The ampere may be defined in terms of the mechanical units of force and length, a more helpful picture is that of moving electrons. When a current of one ampere is flowing in a conductor, one coulomb of charge passes any point in the conductor every second.

The ampere is thus a measure if the rate of flow of electrons.

 


Related Discussions:- Movement of charge

Explain potential energy, The energy possessed by a object by virtue of its...

The energy possessed by a object by virtue of its position or its configuration is called its potential energy. Concept of potential energy is valid only in conservative field.

Uses of radio isotopes, Uses of radio isotopes: Used in i)Medicine ...

Uses of radio isotopes: Used in i)Medicine ii) Industry iii) Agriculture iv) Meteorology and v) Radio active dating.

Friction, deriving formula of friction

deriving formula of friction

Hooks Law, Can you please give me feedback on my physics assignment.

Can you please give me feedback on my physics assignment.

Electric field due to a line segment of charge, In computing the electric f...

In computing the electric field at a point call it point P in the first quadrant of a Cartesian coordinate system because of a continuous charge distribution from 0 to L on the x-a

Can lighting optic fiber to be spliced or joined, Can lighting optic fiber ...

Can lighting optic fiber to be spliced or joined? All fibers can be spliced along with difficulty and more or less success. The problem is the losses resulting from that a join

What is the direction of related electric field, A plane e-m wave propagate...

A plane e-m wave propagates horizontally from east to west. If the magnetic field related with the wave, at a point in its path, is towards north, what is the direction of related

Electric, Find the electric field between the plates of a capacitor given t...

Find the electric field between the plates of a capacitor given the following:? (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capa

Radial magnetic filed in galvanometer, How theta between plane of the coil ...

How theta between plane of the coil and magnetic field remains constant

Electromagnetic induction, what is construction,,, principle...and working ...

what is construction,,, principle...and working of AC generator

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd