Lesson 4

• What must be done to move a charge in an electric field created by a point charges or a continuously distributed charge?

  Work
• Movement of positively charged particles in a uniform electrical field.

  ELECTRIC POTENTIAL
• Electric potential at any point in an electric field E is electric potential energy per unit charge at that point.

  ELECTROSTATIC POTENTIAL
• Electric potential is designated as

  V
• If the test charge moves in the direction of the electric field,

  potential energy decreases
• 1 V =?

  1 joule/coulomb
• Also defined as work done to move a unit charge from infinity to an arbitrary point B.

  ELECTRIC POTENTIAL
• The electric potential at a point is a?

  scalar quantity