Table of Contents
What is current velocity?
Current velocity is a vector. Its direction refers to the flow direction and it takes degrees (°) as a unit, with the north as zero and clockwise measurement. The size of the current velocity is expressed by cm/s or kn. 1 kn means 1mile per hour, namely 51.44 cm/s, which is approximately equal to 50 cm/s.
How is the current in a conductor determined?
Ohm’s law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm’s law is I = V/R. Current in gases and liquids generally consists of a flow of positive ions in one direction together with a flow of negative ions in the opposite direction.
What is current velocity through copper conductor?
The drift velocity in a 2 mm diameter copper wire in 1 ampere current is approximately 8 cm per hour.
Which of the following characteristics of electron determine the current in a conductor?
The characteristic of an electron determining the current in a conductor is only the drift velocity and not the thermal velocity. Thus, thermal velocity is dependent on temperature and not current.
Which of the following characters of electron determine the current in a conductor?
Drift velocity alone. ∴ thus , drift velocity determine direction of current.
What constitutes an electric current?
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. The SI unit of electric current is the ampere, or amp, which is the flow of electric charge across a surface at the rate of one coulomb per second.
When a current flow in a conductor the order of magnitude of velocity of electron through it is?
The drift velocity of electrons is of the order of 10-3ms-1.
What is the order of drift velocity of an electron in a conductor?