Question

give the answers of the following questions​

Answer 1

1) An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electriccharge through a surface or into a control volume.

2)The electrical resistivity is the electrical resistance per unit length and per unit of cross-sectional area at a specified temperature. The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented by the Greek letter ρ, rho.

3)

A voltmeter is an instrument used for measuringelectrical potential difference between two points in an electric circuit. ... A voltmeter isconnected in parallel with a device to measureits voltage, while an ammeter is connected in series with a device to measure its current.

Explanation:

I only know three questions hope it is helpful.