Answer:

Explanation:
Given:
- the voltage of the source,

- distance of separation between the capacitor plates,

- energy of the capacitor,

Assuming that there is free space between the plates, so the permittivity, 
<u>We have the energy stored in a capacitor as:</u>



Amount of charge on the capacitor=q=10⁻³C
Energy stored=4.5x10⁻³ J
potential difference= 9 V
Energy stored= E= 1/2 q V
4.5x10⁻³ =1/2 q (9)
q=10⁻³C
Thus the amount of charge on the capacitor=q=10⁻³C
Answer:
the first one
Explanation:
because the same side magnates repel each other
Gravitational force is not related to other force because it is related to gravity.
<h3>How magnetic force and electrostatic force are related?</h3>
Electrostatic force and magnetic force are link to each other because both have charges. Electrostatic force is type of force that is present between two electrically charged particles. They can either be a repulsive or attractive force.
So we can conclude that Gravitational force is not related to other force because it is related to gravity.
Learn more about force here: brainly.com/question/12970081
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