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What is ohm's law in vector form?

Asked by neelam.vishva | 25 Jan, 2019, 09:14: PM
A vector has 3 propriety, direction in space, versus and the algebric value. On the other hand a scalar is just a number. Electric current is a scalar despite the fact the current have a numerical value and a precise versus in space, but dont have a specific direction in space, the direction of the electric current follow the direction of the wire, so the Current is a scalar, like the voltage.

However, as you have asked what is the vector 'form' of the Ohm's Law, it is,

j=σE,

Where j the current density SI unit : A/m²

E is electric field with SI unit V/m

σ is the conductivity (reciprocal of resistivity).

Answered by Science Mate | 25 Jan, 2019, 11:09: PM

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