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Math Help - metal sphere

  1. #1
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    Unhappy metal sphere

    A metal sphere has a charge of +8.02uC. What is the net charge after 6.19E+13 electrons have been placed on it?

    I have tried this numerous times and nothing I get ever works...

    please help if you can
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by lovinhockey26 View Post
    A metal sphere has a charge of +8.02uC. What is the net charge after 6.19E+13 electrons have been placed on it?

    I have tried this numerous times and nothing I get ever works...

    please help if you can
    A single electron carries a charge of -1.6 \times 10^{-19}~C. So 6.19 \times 10^{13} electrons carries a charge of what?

    -Dan
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