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Electric Forces And Electric Fields (15)

14 Questions  I  By Locolais
Electric Forces and Electric Fields (15)
Chapter 15 Physics - Multiple Choice

  
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5.  A very small ball has a mass of 5.0e-3 Kg and a charge of 4 uC. What magnitude electric field directed upward will balance the weight of the ball?
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8.  The magnitude of the electric force between two protons is 2.3e-26 N. how far apart are they?
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9.  Estimate the magnitude of electric field strenght due to the proton of hydrogen atom at a distance of 5.39e-11m. The expected position of the electron in the atom.
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