Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revisionBoth sides next revision | ||
184_notes:pc_force [2021/01/26 21:15] – bartonmo | 184_notes:pc_force [2021/01/26 21:27] – [General Relationship] bartonmo | ||
---|---|---|---|
Line 18: | Line 18: | ||
$$\vec{F}_{net \rightarrow q}=q*\vec{E}_{net}$$ | $$\vec{F}_{net \rightarrow q}=q*\vec{E}_{net}$$ | ||
- | Where we are using the notation of $net \rightarrow q$ to show that this is the force //from// the net electric field //on// the charge q. Since electric field is a vector and charge is a scalar, when they are multiplied together, the result is a vector (electric force). This vector points in the same direction as the electric field for positive charges and in the opposite direction of the electric field in the case of negative charges. **Note that this is the electric force from the //external electric field// on the // | + | Where we are using the notation of $net \rightarrow q$ to show that this is the force //from// the net electric field //on// the charge q. Since electric field is a vector and charge is a scalar, when they are multiplied together, the result is a vector (electric force). This vector points in the same direction as the electric field for positive charges and in the opposite direction of the electric field in the case of negative charges. **Note that this is the electric force from the //external electric field// on the // |
+ | //Note: there is some ambiguity about the direction of the force as it would matter which kind of charge is placed in the field.// | ||
The electric force works in the same way as any other force that you learned about in Mechanics: | The electric force works in the same way as any other force that you learned about in Mechanics: | ||
- | * The electric force has units of newtons (N). | + | |
* The electric force can be combined with any other forces acting on an object to find the [[183_notes: | * The electric force can be combined with any other forces acting on an object to find the [[183_notes: | ||
* The electric force can contribute to a [[183_notes: | * The electric force can contribute to a [[183_notes: |