Electric potential (2.0) (AQA A-Level Physics): Flashcards
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Practise the cards
10 cards from this deck
Definition of electric potential at a point
Definition of electric potential at a point
Work done per unit charge bringing test charge from infinity
Sign of potential around isolated positive charge
Sign of potential around isolated positive charge
Always positive
Formula relating to change in potential
Formula relating to change in potential
E = rac{Delta V}{Delta r}
Electric potential at distance from point charge
Electric potential at distance from point charge
V = rac{Q}{4pivarepsilon_0 r}
Is electric potential scalar or vector?
Is electric potential scalar or vector?
Scalar quantity
What is an equipotential surface?
What is an equipotential surface?
Surface where potential has same value at every point
Angle between field lines and equipotential surfaces
Angle between field lines and equipotential surfaces
90° (perpendicular)
Shape of equipotentials for a point charge
Shape of equipotentials for a point charge
Concentric spheres (circles in 2D)
Electric field strength inside isolated conductor
Electric field strength inside isolated conductor
Zero
Electric potential inside isolated conductor
Electric potential inside isolated conductor
Constant throughout entire conductor