Concept explainers
a. Suppose that you start with a charge of 0.002 C in an electric field and find that it takes 24 T of work to move the charge from point A to point B. What is the voltage difference between points A and B?
b. If the charge is released, what is its kinetic energy as it flies back past point A?
(a)
To find: The voltage difference between points
Explanation of Solution
Work charge particle (q = 0.002 C) moved between points A and B is
The voltage difference between A and B,
(b)
To find: Kinetic energy as it flies back to A.
Explanation of Solution
Using the principle of conservation of energy
Total energy of the system remain constant. So decrease in potential energy would increase the kinetic energy. The electric potential energy 24 J will be converted to 24 J of kinetic energy.
Chapter 33 Solutions
Conceptual Physics: The High School Physics Program
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