physics

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A hair dryer draws a current of 9.7 A.
(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 -

    I= 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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