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Electric Potential and Potential Energy
Electric potential at a point is electric potential energy per unit charge.
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Electric Potential and Potential Energy
Recommended for Class 10
Electric Potential and Potential Energy
Electric Potential
Electric potential at a point is electric potential energy per unit charge.
**V = Uq**
Unit:
volt (V)
and:
**1 V = 1 J/C**
Potential Due to Point Charge
For a point charge:
**V = kQ/r**
Potential is a scalar quantity.
Electric Potential Energy
A charge in an electric field can possess electric potential energy.
For two point charges:
**U = kq₁q₂/r**
The sign of U depends on the signs of the charges.
Potential Difference
Potential difference tells us how much electric potential energy changes per unit charge:
**ΔV = ΔUq**
Electric Potential and Potential Energy — Advanced
Common Mistakes
Common Mistakes
- Mistake
Potential is scalar, field is vector.
- Mistake
Potential and potential energy are different quantities.
- Mistake
Volt is J/C.
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Practice
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Exam Practice
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School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.