Forces Between Multiple Charges
Chapter Name : Electric Charges And Fields |
Sub Topic Code : 101_12_01_07_01 |
Topic Name : Forces Between Multiple Charges |
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Sub Topic Name : Forces Between Multiple Charges |
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Introduction
Two charges in the vacuum exert force on each other, which can be calculated. But what happens when more than two charges are present?
Pre-Requisites:
Basic properties of electric charges, coulomb’s law.
Activity:
Find out what are the conditions for coulomb’s law to be valid in multiple charges system.
Real Life Question:
Ina system containing more than two charges is only coulomb’s law is sufficient to calculate the force between the charge bodies?”
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Principal of Superposition | A law for vector addition of the quantities. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Book | You can learn more about this from your text book. |
Real life uses :
To calculate the Force between two or more than two point charges.
Places to visit :
Your school physics lab, you can also refer to your text book for more knowledge.
Practical examples around us
| Examples | Explainations |
|---|---|
| Every system of charges present | In every system of charges present in the universe, coulomb’s law is applied to calculate the force between these charges. |
What you learn in Theory:
When more than two point charges are present in the vacuum, the force between them is the vector sum of the individual forces between two charges taken one at a time.
What you learn in Practice:
There exists a force between any two charges present in this universe. To calculate this we need to use both coulomb’s law and superposition principal.