Electric Current
Electric Current: Overview
This topic explains electric current and current density. Positive and negative charges and units of electric current are also described here.
Important Questions on Electric Current
The electrons moving in a specified direction when the ends of the conductor are connected to the battery, are accelerated continuously.
Why do electrons move in a specified direction when the ends of the conductor are connected to the battery?
The flow of electrons is from the positive terminal to the negative terminal.
What happens to the motion of electrons when the ends of the conductor are connected to the battery?
The net charge moving along a conductor through any cross-section is _____ when the conductor is in open circuit.
What happens to the motion of the electrons in an open circuit?
A space lattice is an array of points showing how particles are arranged at different sites in _____ dimensional spaces.
A space lattice is an array of points showing how particles are arranged at different sites in three dimensional spaces.
The smallest three dimensional group of lattice point, which when repeated in three dimensions in space gives the whole lattice of the crystal, is called lattice space.
The smallest three dimensional group of lattice point, which when repeated in three dimensions in space gives the whole lattice of the crystal, is called lattice space.
The smallest three dimensional group of lattice point, which when repeated in three dimensions in space gives the whole lattice of the crystal, is called _____
Lattice is a two - dimensional array of points, each which has identical surroundings.
Lattice is a _____ dimensional array of points, each which has identical surroundings.
A copper wire of area of cross section, carries a current of . If the number of electrons per cubic meter is , calculate the average drift velocity.
If the voltage applied across a conductor is doubled, how will the drift velocity of the electron change?
Drift velocity and thermal velocity of electrons determines the current in a conductor.
Give the relation between drift velocity and current.
