High school physics, static field, summary of knowledge points
High school physics, static field, summary of knowledge points
Physics is the subject of the most general pattern of physical motion and the basic structure of the substance. Do it
For the leading science of natural sciences, physics research is as big as the universe, as small as basic particles
The most basic forms and patterns of physical activity, and therefore other natural science disciplines
Base. Here's a summary of the high-school physics, the static field, collected by the store. Welcome
Read, i hope you like。
I. Basic rules of the electric field
The constant law of charge: the charge is neither created nor eliminated, it can only come from one
The object is transferred to another object, or from one part of the object to another, in turn
The total amount of the charge remained unchanged during the transfer。
) three types of charge: friction, induction, exposure。
)metal charge: the smallest unit with electrical charge. Any charge with electric body is a charge
Number of integers, e = 1. 6 x 10
- 19c
- it's measured in michigan
Value。
The law of cullen:
The content of the law: the interaction between the two static point charges in the vacuum, and it
The multipliers of their charge are positive, the squares of their distance, the power of their force
To their connection。
) expression:
K=9. 0x109n. M2
/c2
- the static power constant
) applicable condition: stationary spot charge in vacuum。
Nature of field power — intensity of the field
, basic nature of the electric field: the power of the electric field on the charge(s) into it。
Power field intensity
) definition: the field where the charge is received at a point in the electric field power
And the charge load
It's called the power field strength of the point。
) definition formula:
Doesn't matter, it's up to the electric field itself。
) field strength is the vector: size: the amount of the field power received in a unit charge。
