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Erstellt von Ben Goetze
vor mehr als 9 Jahre
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Frage | Antworten |
Electric Charge | A property of electrons and protons, which have a negative and positive charge respectively. The Coulomb is the SI unit of electric charge. |
Like charges _______, while unlike charges __________ each other | repel, attract |
An excess of electrons causes a body to become ________ charged, whereas a deficiency of electrons causes a body to become ___________ charged | negatively, positively |
Conductor | A material that contains charged particles that are free to move called charge carriers. |
Insulator | A material that does not contain charge carriers |
"Earthed" | A body is earthed if it is connected to the Earth by a conducting path |
An object may be charged by: | Friction, Contact, or Induction |
Law of Conservation of Charges | The total amount of electric charge never changes, it is only transferred |
Electric Field | A region where an electric charge experiences a force |
Electric Field Strength | The force per unit charge a small positive charge would experience if placed at that point. The unit is NC^-1 |
Field Lines | A representation of an electric field, such that the direction of the field is at a tangent to the line, and the magnitude of the field at any point is represented by the spacing of the lines |
Electric Potential Energy | The potential energy of a charge in an electric field |
Electric Potential difference (Voltage) between 2 points: | The change in potential energy or work done per unit charge in moving a small positive test charge between them |
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