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| The electron and proton of a hydrogen atom are separated, on average, by a distance of about 5.3 x 10^-11 m. Find the magnitude of the electric force that each particle exerts on the other. | ??? |
| Two identical conducting spheres are placed with their centers 0.30 m apart. One is given a charge of +12 x 10^-9 C and the other is given a charge of -18 x 10^-9 C. Find the magnitude of the electric force exerted on one sphere by the other sphere. | ??? |
| Two electrostatic point charges of +60 microcoulombs and +50 microcoulombs exert a repulsive force on each other of 175 N. What is the distance between the two charges? | ??? |
| The electric force on two particles is 1.2 x 10^-6 N. If both charges double and the distance between them quadruples, what is the new electric force acting? | ??? |
| A negative charge of 2.0 x 10^-8 C experiences a force of 0.060 N to the right in an electric field. What are the field magnitude and direction? | ??? |
| What charge exists on a test charge that experiences a force of 1.4 x 10^-8 N at a point where the electric field intensity is 2.0 x 10^-4 N/C? | ??? |
| A test charge experiences a force of 0.20 N on it when it is placed in an electric field intensity of 4.5 x 10^5 N/C. What is the magnitude of the charge? | ??? |
| A test charge of -5 x 10^-8 C is placed in an electric field of 6.2 x 10^4 N/C, directed north. What is the force experienced by the test charge? | ??? |
