EMF_GAUSS LAW

Which of the following is a statement of Gauss's law?

• a. The electric field around a closed surface is proportional to the surface area.

• b. The electric flux through a closed surface is proportional to the charge enclosed.

• c. The electric potential inside a conductor is constant.

• d. The electric field inside a conductor is zero.

What is electric flux?

• a. The amount of electric charge per unit area.

• b. The amount of electric field per unit area.

• c. The amount of electric field passing through a closed surface.

• d. The amount of electric charge passing through a closed surface.

What is the unit of electric flux?

• a. N/C

• b. Nm/C

• c. C/m^2

• d. C/m

Which of the following statements is true about electric flux?

• a. Electric flux is always positive.

• b. Electric flux can be negative.

• c. Electric flux is always zero.

• d. Electric flux depends on the size of the surface.

What is the formula for electric flux?

• a. Φ = Q/ε0

• b. Φ = E/A

• c. Φ = ∫E.dA

• d. Φ = ρV

Which of the following is true for a closed surface containing a charge Q?

• a. The electric flux through the surface is zero.

• b. The electric field is zero everywhere inside the surface.

• c. The electric flux through the surface is proportional to the charge enclosed.

• d. The electric potential is constant everywhere inside the surface.

What is the electric field inside a charged spherical shell?

• a. The electric field is zero everywhere inside the shell.

• b. The electric field is proportional to the radius inside the shell.

• c. The electric field is proportional to the charge on the shell.

• d. The electric field is constant everywhere inside the shell.

What is electric density?

• a. The amount of electric charge per unit volume.

• b. The amount of electric field per unit volume.

• c. The amount of electric field passing through a closed surface.

• d. The amount of electric charge passing through a closed surface.

Which of the following is true for a charged conductor?

• a. The electric field is zero everywhere inside the conductor.

• b. The electric potential is constant everywhere inside the conductor.

• c. The charge density is highest at the surface of the conductor.

• d. All of the above.

What is the formula for electric field due to a point charge?

• a. E = kQ/d^2

• b. E = Q/ε0d^2

• c. E = kQ/r^2

• d. E = Q/ε0r^2