The electric field inside a dielectric decreases, when it is placed in an external electric field. This happens due toa)Electrostatic shieldingb)Polarizationc)Electrostatic repulsion between atomsd)Electrostatic attraction between atomsCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Bcz of alignment of dipole ie.in the direction opposite to electric field so EF decreases

Answer

The net electric field inside a dielectric decreases due to polarization. The external electric field polarizes the dielectric and an electric field is produced due to this polarization.

Answer

This  happened  due  to  dipole  moment  per  unit  volume

Answer

B

Answer

Polarization

Answer

Explanation:

When a dielectric material is placed in an external electric field, it undergoes a phenomenon called polarization. This polarization is responsible for the decrease in the electric field inside the dielectric.

Polarization:
Polarization is the process in which the positive and negative charges within a dielectric material separate and align themselves in the direction of the applied electric field. This separation of charges creates an electric dipole moment in each atom or molecule of the dielectric material.

Effect of Polarization on Electric Field:
When the dielectric material is placed in an external electric field, the electric dipoles within the dielectric align themselves in the direction of the applied field. This alignment of dipoles creates an induced electric field that opposes the external electric field. As a result, the net electric field inside the dielectric decreases.

Explanation of Other Options:
- Electrostatic shielding: Electrostatic shielding occurs when conductive materials are used to block or reduce the electric field. However, in the case of a dielectric material, the decrease in the electric field inside is not due to shielding, but rather due to polarization.
- Electrostatic repulsion between atoms: While there might be electrostatic repulsion between the charged particles within the dielectric material, it does not directly cause a decrease in the electric field inside the dielectric.
- Electrostatic attraction between atoms: Similarly, the electrostatic attraction between atoms within the dielectric material does not directly cause a decrease in the electric field inside the dielectric.

In summary, the correct answer is option B - polarization. Polarization is the phenomenon responsible for the decrease in the electric field inside a dielectric when it is placed in an external electric field.

Answer

The external electric field polarizes the dielectric and an electric field is produced.
The net electric field inside the dielectric decreases due to polarization.

Answer

A

Answer

The external electric field polarizes the dielectric and an electric field is produced.
The net electric field inside the dielectric decreases due to polarization.

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