Electric Flux

What is electric flux?

• A measure of the amount of electric field passing through a defined area.

• The total electric charge enclosed within a surface.

• The force experienced by a unit positive charge in an electric field.

• The potential energy per unit charge at a point in an electric field.

In the equation for electric flux, Φ_E = EA cos θ, what does 'A' represent?

• The magnitude of the electric field.

• The angle between the electric field and the area vector.

• The area of the surface through which the electric field passes.

• The electric charge.

What is the direction of an area vector relative to the plane of the area?

• Parallel to the plane of the area.

• Normal (perpendicular) to the plane of the area.

• In the direction of the electric field.

• Opposite to the direction of the electric field.

Which statement correctly describes electric flux and its units?

• Electric flux is a vector quantity, measured in Volts per meter (V/m).

• Electric flux is a scalar quantity, measured in Newtons per Coulomb (N/C).

• Electric flux is a scalar quantity, measured in Newton-square meters per Coulomb (N·m²/C).

• Electric flux is a vector quantity, measured in Joules per Coulomb (J/C).

For the right triangular box shown, what is the electric flux through the back face (Area 1)?

• Eaw

• -Eaw

• 0

• E(aw)cos(90°)

Considering the right triangular box, what is the electric flux through the bottom face (Area 2)?

• E(bw)

• -E(bw)

• 0

• E(bw)cos(45°)

What is the electric flux through the near triangular face (Area 3) of the right triangular box?

• E(1/2 ba)

• -E(1/2 ba)

• 0

• E(1/2 ba)cos(45°)

What is the total net electric flux through the entire closed right triangular box?

• Eaw

• -Eaw

• 2Eaw

• 0