Electric Charges & Fields: Gauss's Law
What physical quantity does electric flux measure?
A square with sides of length 2 meters is placed in a uniform electric field of 5 N/C. The electric field is perpendicular to the surface. What is the electric flux through the square?
A rectangular surface with sides of length 1m and 2m is placed in a uniform electric field of 10 N/C. The electric field makes an angle of 60 degrees with the normal to the surface. What is the electric flux through the surface?
A cube is placed in a uniform electric field. According to the definition of the area vector for closed surfaces, what is the direction of the area vector for each face of the cube?
Under what condition is the electric flux through a surface negative?
A square surface of side length is placed in the xy-plane. The electric field is given by , where is a constant. Calculate the electric flux through the square.
Consider a non-standard surface in a varying electric field. Which of the following integrals represents the correct setup for calculating the total electric flux through the surface?
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If the amount of charge enclosed by a closed surface is doubled, how does the electric flux through the surface change?
A sphere of radius encloses a charge . What is the electric field at the surface of the sphere, expressed in terms of the electric flux ?
A square surface with area A is placed in a uniform electric field E. The electric field makes an angle of 30 degrees with the surface. A student calculates the flux as simply E*A, neglecting the angle. What is the correct expression for the flux?