- #1

yrjosmiel

- 53

- 5

The symbol for electrical current is I. But so is rotational inertia! Are there any other symbols for rotational inertia/electrical current?

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- Thread starter yrjosmiel
- Start date

- #1

yrjosmiel

- 53

- 5

The symbol for electrical current is I. But so is rotational inertia! Are there any other symbols for rotational inertia/electrical current?

<Moderator's note: Questionable use of language removed.>

- #2

DrStupid

- 2,167

- 500

Are there any other symbols for rotational inertia/electrical current?

I have seen I, J or ##\Theta## as symbols for moment of inertia but you can use any symbol you want if you explain it suffitiently (e.g. with a corresponding comment at the first use).

- #3

berkeman

Mentor

- 63,576

- 14,699

Much more common is i(t) with the lower case "i". Problem solved?The symbol for electrical current is I.

- #4

yrjosmiel

- 53

- 5

Really? Huh, this is the first time I've encountered this.Much more common is i(t)

- #5

berkeman

Mentor

- 63,576

- 14,699

Well, in fairness, it's commonly written both ways, but maybe more often as "I" for DC and more often as "i(t)" for AC and time-varying currents. In any case, you certainly can choose to use either, and since your work involves I=MOI, you can chose to use i(t) for your current in your equations.Really? Huh, this is the first time I've encountered this.

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