Four different resistors have various amounts of electric current flowing through them. Given the values of current I and resist
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Answer:
Explanation:
According to the Coulomb's law, the magnitude of the electrostatic force between two static point charges and
, separated by a distance
, is given by
where k is the Coulomb's constant.
Initially,
The negative sign is taken with force F because the force is attractive.
Therefore, the initial electrostatic force between the charges is given by
Now, the objects are then brought into contact, so the net charge is shared equally, and then they are returned to their initial positions.
The force is now repulsive, therefore,
The new charges on the two objects are
The new force is given by
Using (1),
Using (1),
When ,
When ,
Since,
Therefore,