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Electric Charges and Forces

Electric Force and Coulomb’s Law

Electric Force and Coulomb’s Law

Electric Charges and Forces Principles
Electric Charge

Electric Charge

Electric Charges and Forces Principles
What can be said about a sphere that has a net charge of +4.0 X 10^-15 C?
Two small, identical, charged spheres attract each other with a force of 8.0 x 10-5 N, when they are 30 cm apart. They are touched together, and are again placed 30 cm apart, but they now exert a force of repulsion of 1.0 x 10-5 N on each other. What is
Two electric charges experience an attractive force. What happens to that force if the charge of one of the objects is tripled and the charge of the other object is doubled? (Assume the distance between the objects stays the same.)
A helium atom has two protons in its nucleus. If the attractive force between an orbital electron and the nucleus is 4.8 X 10^-7 N, what is the atomic radius of a helium atom?
One 24-g conducting pith ball has -6.4 µC of charge and touches an identical pith ball that is initially neutral. The diagram below (not to scale) shows the final configuration of the two pith balls as they hang from threads:- Explain the value of the cha
Each corner of a right angled triangle is occupied by identical point charges "A", "B", and "C" respectively. Draw a sketch of this arrangement. "A" exerts force F on "B". An equal force F is exerted by "C" on "B" (deltaABC=90 degrees). Determine an expre
The electrostatic force between two point charges is 6.0x10^-5 N. IF the distance between the, is halved, the charge of one of the points doubles and the charge of the other point triples. What will be the force between them?
Three charges are shown in the diagram below:- Construct a diagram showing arrows that represent the forces on the -3.2 µC charge.- Calculate the net force on the -3.2 µCcharge.- If the -3.2 µCcharge has a mass of 75 grams, calculate its initial accelerat
There are four charged objects: A, B, C, and D. Object A is charged positively. Object A is attracted to Object B. Object B is repelled from Object C. Object C is attracted to Object D. What are the charges on Objects B, C, and D?
Why do the two leaves of a neutral electroscope go apart when a positive rod is brought near the cap (but not touching it)?

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