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Coulomb’s Torsion Balance

Coulomb’s Torsion Balance. +1 nC. −1 nC. −2 nC. −1 nC. −1 nC. −1 nC. +1 nC. −4 nC. Coulomb’s Law. The force between two charged objects. Practice

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Coulomb’s Torsion Balance

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  1. Coulomb’s Torsion Balance

  2. +1 nC −1 nC −2 nC −1 nC −1 nC −1 nC +1 nC −4 nC

  3. Coulomb’s Law The force between two charged objects

  4. Practice The electron and proton of a hydrogen atom are separated, on average, by a distance of about 5.3×10-11 m. Find the magnitudes of the electric force and the gravitational force that each particle exerts on the other.

  5. Superposition Principle Three charges are located on the x-axis. Find the magnitude and direction of the resultant force on the +5.0 μC charge. y −3.0 μC +5.0 μC +1.5 μC x 5.0 cm 0.0 cm 3.0 cm

  6. Find the magnitude and direction of the resultant force on the +5.00 nC charge. 4 cm +5.00 nC −2.00 nC 3 cm 5 cm +6.00 nC

  7. Electrostatic Equilibrium Three charges lie along the x-axis. One positive charge, q1=+15μC, is at x=2.0 m, and another positive charge, q2=+6.0 μC, is at the origin. At what point on the x-axis must a negative charge, q3, be placed so that the resultant force on it is zero? y q1= +15 μC q2= +6.0 μC x 2.0 m 0.0 m q3 x=?

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