Understand Why Current Is Defined as a Scalar

hasan_researc · Jun 27, 2010

Homework Statement

Why has current been defined to be a scalar?

Homework Equations

The Attempt at a Solution

No idea whatsoever!

Eynstone · Jun 27, 2010

Current density , as you know, is a vector. Current flowing across a fixed piece of surface is the integral of the current density over the surface(=(int)J.dA). Thus,the current is a scalar (but may depend on time).

hikaru1221 · Jun 27, 2010

Because it is defined as the number of charges moving through the cross-sectional area of the wire per time unit.

Understand Why Current Is Defined as a Scalar

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

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Understand Why Current Is Defined as a Scalar

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

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