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I'm doing a physics home study course and in the text it says:

It hasn't mentioned what the symbols Ø and ∆ mean before so I figure it's something I was expected to have known. If a charge of ØQ coulombs passes a point in Øt seconds, the current I is given by:

I = ∆Q / ∆t

I'd really appreciate it if someone could help me out with this.

Thanks,

Matt

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# Help with symbols Ø and ∆

**Physics Forums | Science Articles, Homework Help, Discussion**