Define power,electric charge,electric field density,electric flux density and relative permitivity?

Power: Power is the rate at which work is done or energy is transferred. It is measured in watts (W) and is calculated by multiplying the voltage by the current in an electrical circuit.

Electric charge: Electric charge is a fundamental property of matter that causes it to experience a force when placed in an electric field. It is measured in coulombs (C) and can be positive or negative.

Electric field density: Electric field density is a measure of the strength of an electric field at a given point in space. It is measured in volts per meter (V/m) and is calculated by dividing the force experienced by a test charge by the magnitude of the charge.

Electric flux density: Electric flux density is a measure of the electric field passing through a given area. It is measured in coulombs per square meter (C/m^2) and is calculated by multiplying the electric field density by the relative permittivity of the material.

Relative permittivity: Relative permittivity, also known as dielectric constant, is a measure of how easily a material can be polarized by an electric field. It is a dimensionless quantity that is used to compare the ability of different materials to store electrical energy.