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Note that Coulomb’s law gets only the magnitude of the electric force between two point charges These questions are intended for the college level and are difficult For simple and more relevant practice problems on Coulomb’s law for the high school level, refer to here Buy 500 solved physics problems for high school and college students
calculate “q” or “Q” to plug into Coulomb’s Law ~~~~ Similarly to Newton’s ULOG, Coulomb’s Law is a vector law When multiple charges are involved, make sure to draw the forces acting on each charged object (as vector arrows) Again, do not put signs into Coulomb’s law, as the vector arrows provide sufficient direction Once the
Coulomb’s Law Worksheet Solutions 1 Two charged spheres 10 cm apart attract each other with a force of 3 0 x 10 6 N What force results from each of the following changes, considered separately? a) Both charges are doubled and the distance remains the same b) An uncharged, identical sphere is touched to one of the spheres, and then taken
Coulomb’s Law Additional Practice Problems answers 1 A helium nucleus has charge +2e and a neon nucleus +10e, where e = 1 60 x 10-19 C With what force do they
Answer: From Newton’s second law, the charged particle will experience a force FEe ==qm G G G (6 1) Since the electric field points in the +x-direction, the acceleration is eq qE ˆ mmm === F E axi G G G (6 2) Question 2: Suppose the charge +q is released from rest What is the velocity of the charge after it has traveled a distance d in the
7 A test charge with a negative charge of 2 18x10-8 C experiences a northward force of 4 50x10-5 N when placed a distance of 25 0 cm from a source charge a Determine the magnitude and direction of the electric field at this location