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Deriving Units for Current Density - J=I/A Length

Thread starter AGGENGR
Start date Oct 7, 2014
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Current Current density Density

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AGGENGR

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Oct 7, 2014

#1

Just trying to derive the units for current density but i keep getting A*m rather than A/m^2.

J = I/A

A length derivation would help.

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Orodruin

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Oct 7, 2014

#2

What are the units of I and A? ...

AGGENGR

Oct 7, 2014

#3

Units of A: C/S
Units of I: A

mfb

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Oct 7, 2014

#4

How do you get A*m? Where does that come from?

Be careful with the letter A here, it can represent Amperes (as unit) and an area (as symbol).

AGGENGR

Oct 9, 2014

#5

Ok i actually see what i was doing wrong. Just a bad algebra error. Thanks!

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