Physics - Electricity, Magnetism and Waves - Theory
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How can electric potential and current be determined?
What does it mean to have a 9 volt battery? How can voltage be measured?
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The expert determines what it means to have a 9 volt battery. Complete Answers to the Theory Questions are provided.
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(1) Electric Potential
The electric potential at a point in space is the potential energy per unit charge that is associated with a static (time-
invariant) electric field. It is determined by the amount of work that has to be done in moving a unit positive charge from ...
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