All Questions
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How can the force between two charges change when the intervening medium is changed?
This is a common statement that the force between two charges changes when the intervening medium is changed however the gravitational force remains the same. But I have some problem with this.
When ...
- 8,230
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Why does the inverse square law make impossible for an object to levitate throught a combination of distance action forces?
From the book Thinking Physics:
Suppose the moon had a negative charge. Then it would exert a repelling force on electrons near it. But the gravitational force of the moon exerts an attracting force ...
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Why doesn't the gravitational force have a permittivity in its formula? [duplicate]
We know that the electrostatic force between two charges depends on the medium between the charges and its permittivity. Why, then, doesn't the gravitational force depend on the medium?
