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Electric Potential
Introduction
Electric potential describes the work done per unit positive charge in bringing a small positive test charge from infinity to a point in an electric field. It provides a measure of the energy associated with a charge's position in the field and is essential for understanding electric potential difference, electric field strength and the motion of charged particles.
AQA A Level Physics Specification: 3.7.2.3 Electric Potential
What You Need to Know
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Define electric potential as the work done per unit positive charge in bringing a test charge from infinity to a point in an electric field.
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State the unit of electric potential (volt, V or J C⁻¹).
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Distinguish between electric potential and electric potential energy.
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Calculate electric potential around a point charge.
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Explain the relationship between electric potential and electric field strength.
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Interpret electric potential gradients in both radial and uniform electric fields.
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Compare electric potential with gravitational potential.
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Solve quantitative problems involving electric potential and charged particles.
Downloadable Topic Pack
Electric Potential Topic Pack Exam Questions and Answers
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