Question

According to the rain analogy for electric flux, what determines how much rain (field) passes through a tilted sheet of cardboard?

Options

• Both the area of the cardboard and its orientation relative to the falling rain

• Only the area of the cardboard

• Only the orientation of the cardboard

• Only the intensity of the falling rain

Answer 1

The rain analogy demonstrates that electric flux depends on both the area of the surface and its orientation. A large area held at an angle may transmit less rain than a smaller area held perpendicular to the rain. Similarly, electric flux depends on both A and the cosine of the angle between the field and area vector.