Gauss's Law and Electric Flux

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What is the net flux through a closed surface surrounding a point charge?

ε0^2/q

q^2/ε0

q/ε0 (correct)

ε0/q

What is the unit of permittivity of free space (ε0)?

Henry per meter

Farads per meter (correct)

Coulombs per meter

Joules per Coulomb

What happens to the net flux if the permittivity of free space is doubled?

The net flux becomes zero

The net flux remains the same

The net flux is doubled

The net flux is halved (correct)

What is the relation between the net flux and the charge q?

The net flux is directly proportional to q Signup and view all the answers

What can be said about the net flux through any closed surface surrounding multiple point charges?

The net flux is the sum of the fluxes due to each charge Signup and view all the answers

What is the direction of the normal at every point on the curved part of the surface of the cylinder?

Parallel to the surface at every point Signup and view all the answers

What is the shape of the surface of the cylinder?

Cylindrical Signup and view all the answers

What can be said about the magnitude of E?

It is constant in magnitude Signup and view all the answers

What is true about the direction of E?

It is parallel to the length of the cylinder Signup and view all the answers

At how many points on the curved part of the surface is E parallel to the surface?

At every point Signup and view all the answers

What happens when you add many electric charges together?

The electric fields combine to form one electric field Signup and view all the answers

What is true about the electric field of many charges?

It is the vector sum of the electric fields produced by the individual charges Signup and view all the answers

What is the relationship between the electric fields of individual charges and the total electric field?

The total electric field is the vector sum of the individual electric fields Signup and view all the answers

How do you find the electric field of multiple charges?

By adding the electric fields produced by the individual charges Signup and view all the answers

What is the result of adding multiple electric charges?

A vector electric field Signup and view all the answers

What is the charge density in this case?

Charge per unit area Signup and view all the answers

What is the direction of the electric field?

Perpendicular to the surface Signup and view all the answers

What is the shape of the Gaussian surface used to calculate the electric field?

Right cylinder Signup and view all the answers

What is the reason for choosing a Gaussian surface with height 2r?

To cut through the plane perpendicularly Signup and view all the answers

What law is used to calculate the electric field?

Gauss' Law Signup and view all the answers

What is the electric field E at a point near an infinite non-conducting sheet with charge density σ?

E = σ/ε₀ Signup and view all the answers

What is the net flux Φ through a closed surface enclosing a charge q?

Φ = q/ε₀ Signup and view all the answers

What is the dependence of Gauss' Law on the enclosed charge?

It depends on the enclosed charge only Signup and view all the answers

What can be said about the electric field E near a point charge?

E is perpendicular to the surface Signup and view all the answers

What is the relationship between the electric field E and the charge density σ of an infinite non-conducting sheet?

E is proportional to σ Signup and view all the answers