Question

how can you measure the free electrons per metre cube of conductor... Pls answer this question
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Answer 1

We can measure the free electrons per meter cube of a conductor by the following formula:

$\frac{(N atoms/ mole) (p kg / m^{3}) }{A(kg / mole)}$

where,

N atoms/mole: Avogadro's number

ρ kg/ m³ : Density

A(kg/mole) : Atomic Mass

• Free electrons are the electrons that are not attached to an atom, molecule or an ion.

• They are free to move when they come under the force of the applied magnetic field or electric field.