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The Origin of "I" for Electrical Current
Kirt's Cogitations™ #134

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The Origin of "I" for Electrical Current

Here's an assignment for engineering new grads and technicians. Go ask your favorite engineer why the letter "I" is used as a symbol for current. Don't give him (or her) too much grief for not knowing - the vast majority of engineers I asked didn't know.

The answer: Intensity, since current was originally thought of as being how intense or concentrated the electron flow is in a circuit.

 

Posted January 12, 2008

RF Cafe University"Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my rantings on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

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