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UExcel Physics: Introduction
UExcel Physics: Kinematics
UExcel Physics: Mechanics
UExcel Physics: Optics
UExcel Physics: Fluid Mechanics
UExcel Physics: Thermal Physics
UExcel Physics: Electricity Concepts
UExcel Physics: Magnetism
UExcel Physics: Universe
UExcel Physics: Atomic and Nuclear Physics
Free Online UExcel Physics Courses
Electricity is a force caused by electric charge. It is a form of energy which we use to power machines and electrical devices. When the charges are not moving, electricity is called static electricity.
Potential and Capacitance
Electric potential energy, or electrostatic potential energy, is a potential energy (measured in joules) that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system. An object may have electric potential energy by virtue of two key elements: its own electric charge and its relative position to other electrically charged objects.
Direct Current Circuits
Perhaps one of the most useful yet taken-for-granted accomplishments of the recent centuries is the development of electric circuits. The flow of charge through wires allows us to cook our food, light our homes, air-condition our work and living space, entertain us with movies and music and even allows us to drive to work or school safely.So let us study more about it.
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