Explain polarization of nonpolar molecule in uniform electric field and define linear isotropic diel

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2. Electric Potential and Capacitance

medium

Explain polarization of nonpolar molecule in uniform electric field and define the linear isotropic dielectrics.

Option A

Option B

Option C

Option D

Solution

As shown in figure, in an external electric field the positive and negative charges of a non-polar molecule are displaced in opposite directions.

Non-polar molecuels

The displacement stops when the external force on the constituent charges of the molecule is balanced by the restoring force (due to internal fields in the molecule).

The non-polar molecule thus develops an induced dipole moment is in the direction of the field.

Linear isotropic dielectrics: "In an external electric field when the induced dipole moment is in the direction of the field and is proportional to the field strength" substances for which this assumption is true are called linear isotropic dielectrics.

The induced dipole moments of different molecules add up giving a net dipole moment of the dielectric in the presence of the external field.

Standard 12

Physics

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(JEE MAIN-2017)

Two thin dielectric slabs of dielectric constants $K_1$ and $K_2$ $(K_1 < K_2)$ are inserted between plates of a parallel plate capacitor, as shown in the figure. The variation of electric field $E$ between the plates with distance $d$ as measured from plate $P$ is correctly shown by

medium

(AIPMT-2014)

Explain polarization of nonpolar molecule in uniform electric field and define the linear isotropic dielectrics.

Solution

Similar Questions

Write the types of dielectric and explain them. Give some examples of dielectric substance.

Between the plates of a parallel plate condenser there is $1\,mm$ thick paper of dielectric constant $4$. It is charged at $100\;volt$. The electric field in $volt/metre$ between the plates of the capacitor is

The plates of a parallel plate capacitor with no dielectric are connected to a voltage source. Now a dielectric of dielectric constant $K $ is inserted to fill the whole space between the plates with voltage source remaining connected to the capacitor.

Two thin dielectric slabs of dielectric constants $K_1$ and $K_2$ $(K_1 < K_2)$ are inserted between plates of a parallel plate capacitor, as shown in the figure. The variation of electric field $E$ between the plates with distance $d$ as measured from plate $P$ is correctly shown by

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