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10 Cards in this Set
- Front
- Back
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Coulomb's Law |
Magnitude of the force between two electrically charged bodies, is inversely proportional to their distance squared and proportional to the product of their charges. |
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Electric field strength |
The force exerted by the field on a unit charge placed at that point. |
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Electric potential |
Equal to the work done in bringing a unit positive charge from infinity to the point. The potential of a point at infinity is zero. |
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Equipotential surface |
A surface where the potential is constant. |
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The electric potential energy of a positively charged particle increases when... |
It moves to a point of higher potential. |
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The electric potential energy of a negatively charged particle increases when.. |
It moves to a point of lower potential. |
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There is no electric field.. |
Within the material of a conductor. |
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Where does charge reside on a solid conductor and a hallow conductor? |
Solid: entirely on the surface. Hollow: entirely on the outer surface. |
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Hollow conductor containing a sphere |
Net charge in the sphere is zero. Total charge is the same as before the body was enclosed. Outside the sphere, the field and potential are as though the charge we're concentrated at the centre of the sphere. |
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Gold leaf electroscope |
•when a positively charged body has been brought into contact, electrons flow onto the charged body and become positively charged. •negative or uncharged objects decrease separation of leaves. |
