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  4. Two electrically charged particles, having charges of different magnitudes, when placed at a distance d from each other, experience a force of attraction F. These two particles are put in contact and again placed at the same distance from each other. What is the nature of new force between them?

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Q. Two electrically charged particles, having charges of different magnitudes, when placed at a distance $d$ from each other, experience a force of attraction $F$.
These two particles are put in contact and again placed at the same distance from each other.
What is the nature of new force between them?

Electric Charges and Fields

Solution:

Force of attraction is caused by dissimilar charges. So initially,
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They are then touched
Net value of charge $q_{\text {net }}=\left|q_{1}-q_{2}\right|$
image
When separated, they share same type of charge.