electric charges and fields

Question 1

What is the SI unit of electric charge?

Accepted Answer

Coulomb (C)

Question 2

What is the charge of a single electron?

Accepted Answer

C

Question 3

What is the charge of a single proton?

Accepted Answer

C

Question 4

What law states that like charges repel and unlike charges attract?

Accepted Answer

Coulomb's law

Question 5

What is an electric field?

Accepted Answer

A region around a charged object where another charge experiences a force

Question 6

What is the direction of the electric field due to a positive charge?

Accepted Answer

Radially outward

Question 7

What is the direction of the electric field due to a negative charge?

Accepted Answer

Radially inward

Question 8

What is the unit of electric field?

Accepted Answer

Newton per Coulomb (N/C) or Volt per meter (V/m)

Question 9

What is electric flux?

Accepted Answer

The total number of electric field lines passing through a given surface

Question 10

What is the SI unit of electric flux?

Accepted Answer

Volt-meter (Vm)

Question 11

What is Gauss's law?

Accepted Answer

The total electric flux through a closed surface is equal to

Question 12

What is a conductor in electrostatics?

Accepted Answer

A material that allows free movement of charge

Question 13

What is an insulator in electrostatics?

Accepted Answer

A material that does not allow free movement of charge

Question 14

What is the principle of superposition of electric fields?

Accepted Answer

The net electric field at a point is the vector sum of all individual fields acting at that point

Toutes les cartes