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Electric Dipole Video Lecture - Physics for JEE Main & Advanced
FAQs on Electric Dipole
| 1. What is an electric dipole? |  |
Ans. An electric dipole is a pair of equal and opposite charges separated by a small distance. It is a fundamental concept in electromagnetism and represents the simplest form of a polar molecule.
| 2. How is an electric dipole created? | |
Ans. An electric dipole can be created by either separating positive and negative charges or by shifting the center of positive and negative charges within an object. For example, a water molecule is an electric dipole where the oxygen atom is slightly negative and the hydrogen atoms are slightly positive.
| 3. What are the properties of an electric dipole? | |
Ans. An electric dipole possesses several properties. It has a dipole moment, which is the product of the magnitude of one of the charges and the distance between them. It experiences a torque in an external electric field, aligning itself with the field. An electric dipole also generates an electric field around it, which follows an inverse square law.
| 4. How is the electric field created by an electric dipole calculated? | |
Ans. The electric field created by an electric dipole at a point in space can be calculated using the formula: E = (1/4πε₀) × (2p/r³), where E is the electric field, ε₀ is the permittivity of free space, p is the dipole moment, and r is the distance from the dipole.
| 5. What are some real-life examples of electric dipoles? | |
Ans. Electric dipoles are present in various real-life scenarios. Some examples include water molecules, where the uneven distribution of charges creates a dipole moment. Similarly, radio antennas, capacitor plates, and certain types of molecules in biological systems can also exhibit electric dipole behavior.
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Apr 19, 2026 Last updated
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