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September 19, 2014

September 19, 2014

Posted by **brandon** on Wednesday, October 17, 2012 at 4:14pm.

- physics need help please -
**Elena**, Wednesday, October 17, 2012 at 4:43pmThe field in the center due to one point charge which has no opposite charge is

E=kq/r² = 9•10⁹•5•10⁻⁹/0.03²=5•10⁴ V/m

φ=7• kq/r = 7•9•10⁹•(-5•10⁻⁹)/0.03 =-1.05•10⁴ V

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