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February 28, 2015

February 28, 2015

Posted by **Alice** on Friday, May 11, 2012 at 11:32am.

(a) How much charge passes through the hair dryer in 3.5 min?

1 C

(b) How many electrons does this represent?

2 electrons

- physics -
**Elena**, Friday, May 11, 2012 at 3:12pmI= Δq/Δt =N•e/ Δt.

Δq = I• Δt = 9.7•3.5•60 = ...

N = Δq/e = Δq /1.6•10^-19 = ...

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