Electric Fields Flashcards
Define Electric Field Strength.
Force per unit charge acting on a positive test charge at a point in the field.
How do you calculate the Electric field strength of a uniform electric field?
E = F / Q or E = V / d
How do you calculate electric potential of a point in an electric field?
V = Fd/ Q
How do you calculate Work Done in moving a test charge from one point to another in a uniform electric field?
W = Fd
How do you calculate force in a uniform electric field?
F = VQ / d
How do you calculate Force in a radial electric field?
F = Qq / 4πɛr²
What is the law regarding electrostatic fields (Hint : Force equation)?
The force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.
Define electric potential?
The work done per unit charge in moving a positive test charge from infinity to a point.
What do the arrows represent on an electric field diagram?
The direction the force will act on a positive test charge at a given point.
How does force act in a “uniform” electric field?
The magnitude and direction of the force is the same everywhere in the field.
