Question

current electricity all formulas​

Answer 1

Answer:

Ohm's law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm's law is I = V/R. Current in gases and liquids generally consists of a flow of positive ions in one direction together with a flow of negative ions in the opposite direction

Explanation:

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Answer 2

Answer:

Explanation:

Current. I = neAVd ...

Current Density. j = i/A = σE. ...

Drift speed. V d = 1 2 e E m τ = i n e A V_{d}=\frac{1}{2}\frac{eE}{m}\tau =\frac{i}{neA} Vd=21meEτ=neAi.

Resistance of the wire. R =ρl/A, where ρ=1/σ ...

Temperature dependence of resistance. ...

Ohm's law. ...

Kirchhoff's Law. ...

Resistance in parallel.