Electric Charges & Fields: Gauss's Law
Under what condition is the electric flux through a surface negative?
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?
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 th...
A closed surface is placed in an electric field. The electric field lines enter the surface at one point and exit at another point. What can be said about the net electric flux through the closed surface?
If the amount of charge enclosed by a closed surface is doubled, how does the electric flux through the surface change?
What physical quantity does electric flux measure?
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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?