Current, Resistance, and Electromotive Force

Question 1

it is the rate of flow of charge through some region of space

Answer 1

electrict current

Question 2

what do you call to any moving charge?

Answer 2

charge carrier

Question 3

does the charged particle passing through the surface should be always positive?

Answer 3

no. it can be positive, negative, or both.

Question 4

true or false: When a potential difference is applied
across the conductor, an electric field is set up in the conductor which exerts an electric force on the electrons.

Answer 4

true

Question 5

it is defined as the current per unit area

Answer 5

current density

Question 6

it is the constant proportionality of the conductor

Answer 6

conductivity

Question 7

this law states that for many materials, the ratio of the current density to the electric field is a constant σ that is independent of the electric field producing the current

Answer 7

ohm’s law

Question 8

he is a german physicist that formulated the idea of resistance and its proportionalities

Answer 8

georg simon ohm