Electric Charges And Fields

Question

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How does the force between two point charges change, if the dielectric constant of the medium in which they are kept decreases?

Solution

Dielectric constant of a medium is defined as the ratio of forces between two charges placed in vacuum to medium without any change in magnitude of charges and their distance.

∴

K = \frac{F_{0}}{F}

\Rightarrow

F = \frac{F_{0}}{K}

i.e.,

[F \propto \frac{1}{k}]

Therefore, as K decreases there will be an increase in force.

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

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Electric Charges And Fields

How does the force between two point charges change, if the dielectric constant of the medium in which they are kept decreases?

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?

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NCERT Sample Papers

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For Daily Free Study Material Join wiredfaculty

Electric Charges And Fields

How does the force between two point charges change, if the dielectric constant of the medium in which they are kept decreases?

Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?b) Explain why two field lines never cross each other at any point?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?