Electric fields
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11 Terms
Definition of electric field strength
The force applied per unit positive charge
Equation for electric field strength
E=F/Q
What do field lines of an electric field show
Electric field lines show the direction a positive charge would move
What direction do electric field lines point in?
From positive charge to negative charge
What does the density of electric field lines tell us?
The strength of the electric field.
What angle to electric field lines make to a plane/conductor?
Electric field lines are normal to a plane/conductor.
How is a uniform field represented?
Equally spaced, parallel fields lines.
What is Coulomb’s law?
Any two point charges exert an electrostatic force on each other that is directly proportional to the product of their charges and inversely proportional to the square of their separation.
What is the equation for Coulomb’s law?
F=\frac{Qq}{4\pi\varepsilon_0r^2}
Equation for radial electric field strength
E=\frac{Q}{4\pi\varepsilon_0r^2}
How are electric fields and gravitational fields similar?
A positive charge moving through an electric field moves similar to an object moving through a gravitational field.
