The electric current existing in a disch...

The electric current existing in a discharge tube is `2.0(mu)A.`How much charge is transferred across a cross-section of the tube in 5 minutes ?

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`i=2 mu A`
` t = 5 min. = 5 xx 60 sec. `
` q = it = 2 xx (10^-6) xx 5 xx 60 `
` = 10 xx 60 xx (10^-6)C `
` = 6 xx (10^-4)C `.

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