An electric dipole is defined as a couple of opposite charges q and –q separated by a distance d. By default, the direction of electric dipoles in space is always from negative charge -q to positive charge q. The midpoint q and –q is called the centre of the dipole.
What is electric dipole?
An electric dipole is a pair of equal and opposite charges separated by a considerably short distance. In an electric dipole, the magnitude of both the charges will be the same, we can not consider a pair of two charges with different magnitudes.
What is an electric dipole Class 12?
Class 12 Physics Electric Charges Fields. Electric Dipole. Electric Dipole. An electric dipole is a pair of equal and opposite point charges q and –q, separated by a distance of 2a. Direction from –q to q is the direction of the dipole.
What is a short electric dipole?
The Short dipole is the dipole antenna having the length of its wire shorter than the wavelength. A voltage source is connected at one end while a dipole shape is made, i.e., the lines are terminated at the other end. … λ is the wavelength.
What is electric dipole and its SI unit?
Electric dipole moment Dipole moment →P is a measure of strength of electric dipole. It is a vector quantity whose magnitude is equal to product of the magnitude of either charge and the distance between them. SI unit of dipole moment is coulomb-metre (cm).
What is electric dipole formula?
The formula for electric dipole moment for a pair of equal & opposite charges is p = qd, the magnitude of the charges multiplied by the distance between the two.
What is an electric dipole quizlet?
An electric dipole is basically. two equal but opposite charges separated from each other. Two electric charges are separated by a distance D and experience a repulsive force F.
What is small dipole antenna?
The short dipole antenna is one that is short when compared to a wavelength at the operating frequency. … The short dipole antenna consists of two co-linear conductors that are placed end to end, but with a small gap between them for the feeder.
What is a dipole antenna?
A dipole antenna commonly consists of two identical conductive elements such as metal wires or rods. … The dipole is the simplest type of antenna from a theoretical point of view. Most commonly it consists of two conductors of equal length oriented end-to-end with the feedline connected between them.
What is the length of a short dipole antenna?
A dipole antenna is a linear antenna, usually fed in the center and producing maximum of radiation in the plane normal to the axis. It is said to be short dipole when length is less than ⁄ and current distribution is sinusoidal.
What is an electric dipole write the formula and SI unit of electric dipole moment is it a scalar or vector?
The SI unit of electric dipole moment is Coulomb-meter. The simplest example is a pair of electric charges of two opposite signs and equal magnitude separated by distance. Electric dipole moment. Electric dipole moment is a vector quantity and it is represented as →p=q×→d in vector form.
What is electric dipole moment write its unit and dimensional formula?
2a. is the distance between two charges q and -q the dipole moment of this system is given by →p=q(2→a) Electric dipole moment is a vector quantity, its direction is pointing towards positive charge. The unit of electric dipole moment is Cm (Coulomb-meter) or Ampere-second meter.
What is electric dipole moment write its unit and dimension?
The SI unit of electric dipole moment is coulomb metre (Cm). The electrostatic force on a small sphere of charge 0.4 μC due to another small sphere of charge –0.8 μc in air is 0.2 N.