An electric dipole isa)a pair of electric charges of equal magnitude q separated by a distance db)a pair of electric charges of equal magnitude q but positive sign, separated by a distance dc)a pair of electric charges of equal magnitude q but opposite sign, separated by a distanced)a pair of electric charges of equal magnitude q but negative sign, separated by a distance dCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Introduction:
An electric dipole is a fundamental concept in electromagnetism. It is defined as a pair of electric charges of equal magnitude but opposite sign, separated by a distance.

Explanation:
An electric dipole consists of two point charges of equal magnitude but opposite sign, separated by a distance. The distance between the two charges is called the dipole moment (d). The direction of the dipole moment is from the negative charge to the positive charge. The electric dipole moment is a vector quantity and is given by:

d = q * r

where q is the magnitude of the charges and r is the separation between the charges.

Types of Electric Dipole:
There are two types of electric dipole:

1. Permanent Electric Dipole: A permanent electric dipole is a dipole that has a fixed dipole moment. It cannot be changed by an external electric field.

2. Induced Electric Dipole: An induced electric dipole is a dipole that is created by an external electric field. When an external electric field is applied to an atom or molecule, the electrons are displaced from their positions, creating a dipole moment.

Conclusion:
An electric dipole is a pair of electric charges of equal magnitude but opposite sign, separated by a distance. It is an important concept in electromagnetism and has many applications in physics and engineering.

Answer

Electric dipole, pair of equal and opposite electriccharges the centres of which are not coincident. ... If each charge has a magnitude q and the distance from the centre of the negative charge to that of the positive charge is d, the product qd is defined as the electric dipole moment.

Hence the correct option is 'C'

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