The electric field at point P due to a point charge Q at a distance R away has magnitude E. In order to double the magnitude of the field at P, you could double the charge Q or keeping the same charge you can introduce a medium of permittivity as detailed below.
<em>An </em><em>electric field</em><em> is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them. </em>Electric field is defined as the electric force per unit charge i.e.
Electric field due to a point charge q at a point P which is at distance d is defined as,
; where is the permittivity of medium.
- <em>If the distance (</em><em>) is constant, for a given medium </em><em>, the </em><em>electric field </em><em>is directly proportional to charge </em><em> i.e </em>.
If the electric field strength is twice then,
or
Doubling the charge of the particle will double the electric field at point P which is at distance R.
- If the distance ()is constant, for a given charge , the electric field is inversely proportional to the permittivity of the medium i.e .
If the electric field strength is twice then,
We can introduce a medium of permittivity .
For more details on electric field, check:
brainly.com/question/8971780