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MIT 8.02 Electricity and Magnetism, Spring 2002 16 Online
OpenStudy (anonymous):

Current is a scalar quantity or vector

OpenStudy (anonymous):

Current is a scalar quantity but its "vector behavior"

OpenStudy (anonymous):

It is vector

OpenStudy (anonymous):

Its a scalar quantity

OpenStudy (backmind):

Vector kind. The current flow lines of a steady current flow macroscopically coincide with the lines of the total force on the moving charges. So current have a direction.

OpenStudy (anonymous):

current I is scalar. As you know ' I = V /R ' but, currnet density J is vector. \[I = \int\limits_{}^{}JdS\]

OpenStudy (anonymous):

The current I is the flux of Current Density J, as jinjin said, so is a scalar. The Current Density is instead a vector which carries precicelly the information of the direction the charches are moving. For point particles with charge q adn velocity v \[ \vec J = n q \vec v,\] where n is the number of particles per unit of volume, i.e., the density of charges.

OpenStudy (anonymous):

there are two conditions for a quantity to be a vector: 1) it has to have magnitude and direction 2) it has to obey the laws of vector addition Now current satisfies the first but fails the second therefore it is a scalar quantity

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